Skip to content
GitLab
Commit c884c12b authored by Artem Baranovskyi's avatar Artem Baranovskyi
Browse files

Final commit.

parent 81a9e9f3
Hide whitespace changes
Inline Side-by-side
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/sansio/blueprints.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import os
import typing as t
from collections import defaultdict
from functools import update_wrapper
from .. import typing as ft
from .scaffold import _endpoint_from_view_func
from .scaffold import _sentinel
from .scaffold import Scaffold
from .scaffold import setupmethod
if t.TYPE_CHECKING: # pragma: no cover
from .app import App
DeferredSetupFunction = t.Callable[["BlueprintSetupState"], None]
T_after_request = t.TypeVar("T_after_request", bound=ft.AfterRequestCallable[t.Any])
T_before_request = t.TypeVar("T_before_request", bound=ft.BeforeRequestCallable)
T_error_handler = t.TypeVar("T_error_handler", bound=ft.ErrorHandlerCallable)
T_teardown = t.TypeVar("T_teardown", bound=ft.TeardownCallable)
T_template_context_processor = t.TypeVar(
"T_template_context_processor", bound=ft.TemplateContextProcessorCallable
)
T_template_filter = t.TypeVar("T_template_filter", bound=ft.TemplateFilterCallable)
T_template_global = t.TypeVar("T_template_global", bound=ft.TemplateGlobalCallable)
T_template_test = t.TypeVar("T_template_test", bound=ft.TemplateTestCallable)
T_url_defaults = t.TypeVar("T_url_defaults", bound=ft.URLDefaultCallable)
T_url_value_preprocessor = t.TypeVar(
"T_url_value_preprocessor", bound=ft.URLValuePreprocessorCallable
)
class BlueprintSetupState:
"""Temporary holder object for registering a blueprint with the
application. An instance of this class is created by the
:meth:`~flask.Blueprint.make_setup_state` method and later passed
to all register callback functions.
"""
def __init__(
self,
blueprint: Blueprint,
app: App,
options: t.Any,
first_registration: bool,
) -> None:
#: a reference to the current application
self.app = app
#: a reference to the blueprint that created this setup state.
self.blueprint = blueprint
#: a dictionary with all options that were passed to the
#: :meth:`~flask.Flask.register_blueprint` method.
self.options = options
#: as blueprints can be registered multiple times with the
#: application and not everything wants to be registered
#: multiple times on it, this attribute can be used to figure
#: out if the blueprint was registered in the past already.
self.first_registration = first_registration
subdomain = self.options.get("subdomain")
if subdomain is None:
subdomain = self.blueprint.subdomain
#: The subdomain that the blueprint should be active for, ``None``
#: otherwise.
self.subdomain = subdomain
url_prefix = self.options.get("url_prefix")
if url_prefix is None:
url_prefix = self.blueprint.url_prefix
#: The prefix that should be used for all URLs defined on the
#: blueprint.
self.url_prefix = url_prefix
self.name = self.options.get("name", blueprint.name)
self.name_prefix = self.options.get("name_prefix", "")
#: A dictionary with URL defaults that is added to each and every
#: URL that was defined with the blueprint.
self.url_defaults = dict(self.blueprint.url_values_defaults)
self.url_defaults.update(self.options.get("url_defaults", ()))
def add_url_rule(
self,
rule: str,
endpoint: str | None = None,
view_func: ft.RouteCallable | None = None,
**options: t.Any,
) -> None:
"""A helper method to register a rule (and optionally a view function)
to the application. The endpoint is automatically prefixed with the
blueprint's name.
"""
if self.url_prefix is not None:
if rule:
rule = "/".join((self.url_prefix.rstrip("/"), rule.lstrip("/")))
else:
rule = self.url_prefix
options.setdefault("subdomain", self.subdomain)
if endpoint is None:
endpoint = _endpoint_from_view_func(view_func) # type: ignore
defaults = self.url_defaults
if "defaults" in options:
defaults = dict(defaults, **options.pop("defaults"))
self.app.add_url_rule(
rule,
f"{self.name_prefix}.{self.name}.{endpoint}".lstrip("."),
view_func,
defaults=defaults,
**options,
)
class Blueprint(Scaffold):
"""Represents a blueprint, a collection of routes and other
app-related functions that can be registered on a real application
later.
A blueprint is an object that allows defining application functions
without requiring an application object ahead of time. It uses the
same decorators as :class:`~flask.Flask`, but defers the need for an
application by recording them for later registration.
Decorating a function with a blueprint creates a deferred function
that is called with :class:`~flask.blueprints.BlueprintSetupState`
when the blueprint is registered on an application.
See :doc:`/blueprints` for more information.
:param name: The name of the blueprint. Will be prepended to each
endpoint name.
:param import_name: The name of the blueprint package, usually
``__name__``. This helps locate the ``root_path`` for the
blueprint.
:param static_folder: A folder with static files that should be
served by the blueprint's static route. The path is relative to
the blueprint's root path. Blueprint static files are disabled
by default.
:param static_url_path: The url to serve static files from.
Defaults to ``static_folder``. If the blueprint does not have
a ``url_prefix``, the app's static route will take precedence,
and the blueprint's static files won't be accessible.
:param template_folder: A folder with templates that should be added
to the app's template search path. The path is relative to the
blueprint's root path. Blueprint templates are disabled by
default. Blueprint templates have a lower precedence than those
in the app's templates folder.
:param url_prefix: A path to prepend to all of the blueprint's URLs,
to make them distinct from the rest of the app's routes.
:param subdomain: A subdomain that blueprint routes will match on by
default.
:param url_defaults: A dict of default values that blueprint routes
will receive by default.
:param root_path: By default, the blueprint will automatically set
this based on ``import_name``. In certain situations this
automatic detection can fail, so the path can be specified
manually instead.
.. versionchanged:: 1.1.0
Blueprints have a ``cli`` group to register nested CLI commands.
The ``cli_group`` parameter controls the name of the group under
the ``flask`` command.
.. versionadded:: 0.7
"""
_got_registered_once = False
def __init__(
self,
name: str,
import_name: str,
static_folder: str | os.PathLike[str] | None = None,
static_url_path: str | None = None,
template_folder: str | os.PathLike[str] | None = None,
url_prefix: str | None = None,
subdomain: str | None = None,
url_defaults: dict[str, t.Any] | None = None,
root_path: str | None = None,
cli_group: str | None = _sentinel, # type: ignore[assignment]
):
super().__init__(
import_name=import_name,
static_folder=static_folder,
static_url_path=static_url_path,
template_folder=template_folder,
root_path=root_path,
)
if not name:
raise ValueError("'name' may not be empty.")
if "." in name:
raise ValueError("'name' may not contain a dot '.' character.")
self.name = name
self.url_prefix = url_prefix
self.subdomain = subdomain
self.deferred_functions: list[DeferredSetupFunction] = []
if url_defaults is None:
url_defaults = {}
self.url_values_defaults = url_defaults
self.cli_group = cli_group
self._blueprints: list[tuple[Blueprint, dict[str, t.Any]]] = []
def _check_setup_finished(self, f_name: str) -> None:
if self._got_registered_once:
raise AssertionError(
f"The setup method '{f_name}' can no longer be called on the blueprint"
f" '{self.name}'. It has already been registered at least once, any"
" changes will not be applied consistently.\n"
"Make sure all imports, decorators, functions, etc. needed to set up"
" the blueprint are done before registering it."
)
@setupmethod
def record(self, func: DeferredSetupFunction) -> None:
"""Registers a function that is called when the blueprint is
registered on the application. This function is called with the
state as argument as returned by the :meth:`make_setup_state`
method.
"""
self.deferred_functions.append(func)
@setupmethod
def record_once(self, func: DeferredSetupFunction) -> None:
"""Works like :meth:`record` but wraps the function in another
function that will ensure the function is only called once. If the
blueprint is registered a second time on the application, the
function passed is not called.
"""
def wrapper(state: BlueprintSetupState) -> None:
if state.first_registration:
func(state)
self.record(update_wrapper(wrapper, func))
def make_setup_state(
self, app: App, options: dict[str, t.Any], first_registration: bool = False
) -> BlueprintSetupState:
"""Creates an instance of :meth:`~flask.blueprints.BlueprintSetupState`
object that is later passed to the register callback functions.
Subclasses can override this to return a subclass of the setup state.
"""
return BlueprintSetupState(self, app, options, first_registration)
@setupmethod
def register_blueprint(self, blueprint: Blueprint, **options: t.Any) -> None:
"""Register a :class:`~flask.Blueprint` on this blueprint. Keyword
arguments passed to this method will override the defaults set
on the blueprint.
.. versionchanged:: 2.0.1
The ``name`` option can be used to change the (pre-dotted)
name the blueprint is registered with. This allows the same
blueprint to be registered multiple times with unique names
for ``url_for``.
.. versionadded:: 2.0
"""
if blueprint is self:
raise ValueError("Cannot register a blueprint on itself")
self._blueprints.append((blueprint, options))
def register(self, app: App, options: dict[str, t.Any]) -> None:
"""Called by :meth:`Flask.register_blueprint` to register all
views and callbacks registered on the blueprint with the
application. Creates a :class:`.BlueprintSetupState` and calls
each :meth:`record` callback with it.
:param app: The application this blueprint is being registered
with.
:param options: Keyword arguments forwarded from
:meth:`~Flask.register_blueprint`.
.. versionchanged:: 2.3
Nested blueprints now correctly apply subdomains.
.. versionchanged:: 2.1
Registering the same blueprint with the same name multiple
times is an error.
.. versionchanged:: 2.0.1
Nested blueprints are registered with their dotted name.
This allows different blueprints with the same name to be
nested at different locations.
.. versionchanged:: 2.0.1
The ``name`` option can be used to change the (pre-dotted)
name the blueprint is registered with. This allows the same
blueprint to be registered multiple times with unique names
for ``url_for``.
"""
name_prefix = options.get("name_prefix", "")
self_name = options.get("name", self.name)
name = f"{name_prefix}.{self_name}".lstrip(".")
if name in app.blueprints:
bp_desc = "this" if app.blueprints[name] is self else "a different"
existing_at = f" '{name}'" if self_name != name else ""
raise ValueError(
f"The name '{self_name}' is already registered for"
f" {bp_desc} blueprint{existing_at}. Use 'name=' to"
f" provide a unique name."
)
first_bp_registration = not any(bp is self for bp in app.blueprints.values())
first_name_registration = name not in app.blueprints
app.blueprints[name] = self
self._got_registered_once = True
state = self.make_setup_state(app, options, first_bp_registration)
if self.has_static_folder:
state.add_url_rule(
f"{self.static_url_path}/<path:filename>",
view_func=self.send_static_file, # type: ignore[attr-defined]
endpoint="static",
)
# Merge blueprint data into parent.
if first_bp_registration or first_name_registration:
self._merge_blueprint_funcs(app, name)
for deferred in self.deferred_functions:
deferred(state)
cli_resolved_group = options.get("cli_group", self.cli_group)
if self.cli.commands:
if cli_resolved_group is None:
app.cli.commands.update(self.cli.commands)
elif cli_resolved_group is _sentinel:
self.cli.name = name
app.cli.add_command(self.cli)
else:
self.cli.name = cli_resolved_group
app.cli.add_command(self.cli)
for blueprint, bp_options in self._blueprints:
bp_options = bp_options.copy()
bp_url_prefix = bp_options.get("url_prefix")
bp_subdomain = bp_options.get("subdomain")
if bp_subdomain is None:
bp_subdomain = blueprint.subdomain
if state.subdomain is not None and bp_subdomain is not None:
bp_options["subdomain"] = bp_subdomain + "." + state.subdomain
elif bp_subdomain is not None:
bp_options["subdomain"] = bp_subdomain
elif state.subdomain is not None:
bp_options["subdomain"] = state.subdomain
if bp_url_prefix is None:
bp_url_prefix = blueprint.url_prefix
if state.url_prefix is not None and bp_url_prefix is not None:
bp_options["url_prefix"] = (
state.url_prefix.rstrip("/") + "/" + bp_url_prefix.lstrip("/")
)
elif bp_url_prefix is not None:
bp_options["url_prefix"] = bp_url_prefix
elif state.url_prefix is not None:
bp_options["url_prefix"] = state.url_prefix
bp_options["name_prefix"] = name
blueprint.register(app, bp_options)
def _merge_blueprint_funcs(self, app: App, name: str) -> None:
def extend(
bp_dict: dict[ft.AppOrBlueprintKey, list[t.Any]],
parent_dict: dict[ft.AppOrBlueprintKey, list[t.Any]],
) -> None:
for key, values in bp_dict.items():
key = name if key is None else f"{name}.{key}"
parent_dict[key].extend(values)
for key, value in self.error_handler_spec.items():
key = name if key is None else f"{name}.{key}"
value = defaultdict(
dict,
{
code: {exc_class: func for exc_class, func in code_values.items()}
for code, code_values in value.items()
},
)
app.error_handler_spec[key] = value
for endpoint, func in self.view_functions.items():
app.view_functions[endpoint] = func
extend(self.before_request_funcs, app.before_request_funcs)
extend(self.after_request_funcs, app.after_request_funcs)
extend(
self.teardown_request_funcs,
app.teardown_request_funcs,
)
extend(self.url_default_functions, app.url_default_functions)
extend(self.url_value_preprocessors, app.url_value_preprocessors)
extend(self.template_context_processors, app.template_context_processors)
@setupmethod
def add_url_rule(
self,
rule: str,
endpoint: str | None = None,
view_func: ft.RouteCallable | None = None,
provide_automatic_options: bool | None = None,
**options: t.Any,
) -> None:
"""Register a URL rule with the blueprint. See :meth:`.Flask.add_url_rule` for
full documentation.
The URL rule is prefixed with the blueprint's URL prefix. The endpoint name,
used with :func:`url_for`, is prefixed with the blueprint's name.
"""
if endpoint and "." in endpoint:
raise ValueError("'endpoint' may not contain a dot '.' character.")
if view_func and hasattr(view_func, "__name__") and "." in view_func.__name__:
raise ValueError("'view_func' name may not contain a dot '.' character.")
self.record(
lambda s: s.add_url_rule(
rule,
endpoint,
view_func,
provide_automatic_options=provide_automatic_options,
**options,
)
)
@setupmethod
def app_template_filter(
self, name: str | None = None
) -> t.Callable[[T_template_filter], T_template_filter]:
"""Register a template filter, available in any template rendered by the
application. Equivalent to :meth:`.Flask.template_filter`.
:param name: the optional name of the filter, otherwise the
function name will be used.
"""
def decorator(f: T_template_filter) -> T_template_filter:
self.add_app_template_filter(f, name=name)
return f
return decorator
@setupmethod
def add_app_template_filter(
self, f: ft.TemplateFilterCallable, name: str | None = None
) -> None:
"""Register a template filter, available in any template rendered by the
application. Works like the :meth:`app_template_filter` decorator. Equivalent to
:meth:`.Flask.add_template_filter`.
:param name: the optional name of the filter, otherwise the
function name will be used.
"""
def register_template(state: BlueprintSetupState) -> None:
state.app.jinja_env.filters[name or f.__name__] = f
self.record_once(register_template)
@setupmethod
def app_template_test(
self, name: str | None = None
) -> t.Callable[[T_template_test], T_template_test]:
"""Register a template test, available in any template rendered by the
application. Equivalent to :meth:`.Flask.template_test`.
.. versionadded:: 0.10
:param name: the optional name of the test, otherwise the
function name will be used.
"""
def decorator(f: T_template_test) -> T_template_test:
self.add_app_template_test(f, name=name)
return f
return decorator
@setupmethod
def add_app_template_test(
self, f: ft.TemplateTestCallable, name: str | None = None
) -> None:
"""Register a template test, available in any template rendered by the
application. Works like the :meth:`app_template_test` decorator. Equivalent to
:meth:`.Flask.add_template_test`.
.. versionadded:: 0.10
:param name: the optional name of the test, otherwise the
function name will be used.
"""
def register_template(state: BlueprintSetupState) -> None:
state.app.jinja_env.tests[name or f.__name__] = f
self.record_once(register_template)
@setupmethod
def app_template_global(
self, name: str | None = None
) -> t.Callable[[T_template_global], T_template_global]:
"""Register a template global, available in any template rendered by the
application. Equivalent to :meth:`.Flask.template_global`.
.. versionadded:: 0.10
:param name: the optional name of the global, otherwise the
function name will be used.
"""
def decorator(f: T_template_global) -> T_template_global:
self.add_app_template_global(f, name=name)
return f
return decorator
@setupmethod
def add_app_template_global(
self, f: ft.TemplateGlobalCallable, name: str | None = None
) -> None:
"""Register a template global, available in any template rendered by the
application. Works like the :meth:`app_template_global` decorator. Equivalent to
:meth:`.Flask.add_template_global`.
.. versionadded:: 0.10
:param name: the optional name of the global, otherwise the
function name will be used.
"""
def register_template(state: BlueprintSetupState) -> None:
state.app.jinja_env.globals[name or f.__name__] = f
self.record_once(register_template)
@setupmethod
def before_app_request(self, f: T_before_request) -> T_before_request:
"""Like :meth:`before_request`, but before every request, not only those handled
by the blueprint. Equivalent to :meth:`.Flask.before_request`.
"""
self.record_once(
lambda s: s.app.before_request_funcs.setdefault(None, []).append(f)
)
return f
@setupmethod
def after_app_request(self, f: T_after_request) -> T_after_request:
"""Like :meth:`after_request`, but after every request, not only those handled
by the blueprint. Equivalent to :meth:`.Flask.after_request`.
"""
self.record_once(
lambda s: s.app.after_request_funcs.setdefault(None, []).append(f)
)
return f
@setupmethod
def teardown_app_request(self, f: T_teardown) -> T_teardown:
"""Like :meth:`teardown_request`, but after every request, not only those
handled by the blueprint. Equivalent to :meth:`.Flask.teardown_request`.
"""
self.record_once(
lambda s: s.app.teardown_request_funcs.setdefault(None, []).append(f)
)
return f
@setupmethod
def app_context_processor(
self, f: T_template_context_processor
) -> T_template_context_processor:
"""Like :meth:`context_processor`, but for templates rendered by every view, not
only by the blueprint. Equivalent to :meth:`.Flask.context_processor`.
"""
self.record_once(
lambda s: s.app.template_context_processors.setdefault(None, []).append(f)
)
return f
@setupmethod
def app_errorhandler(
self, code: type[Exception] | int
) -> t.Callable[[T_error_handler], T_error_handler]:
"""Like :meth:`errorhandler`, but for every request, not only those handled by
the blueprint. Equivalent to :meth:`.Flask.errorhandler`.
"""
def decorator(f: T_error_handler) -> T_error_handler:
def from_blueprint(state: BlueprintSetupState) -> None:
state.app.errorhandler(code)(f)
self.record_once(from_blueprint)
return f
return decorator
@setupmethod
def app_url_value_preprocessor(
self, f: T_url_value_preprocessor
) -> T_url_value_preprocessor:
"""Like :meth:`url_value_preprocessor`, but for every request, not only those
handled by the blueprint. Equivalent to :meth:`.Flask.url_value_preprocessor`.
"""
self.record_once(
lambda s: s.app.url_value_preprocessors.setdefault(None, []).append(f)
)
return f
@setupmethod
def app_url_defaults(self, f: T_url_defaults) -> T_url_defaults:
"""Like :meth:`url_defaults`, but for every request, not only those handled by
the blueprint. Equivalent to :meth:`.Flask.url_defaults`.
"""
self.record_once(
lambda s: s.app.url_default_functions.setdefault(None, []).append(f)
)
return f
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/sansio/scaffold.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import importlib.util
import os
import pathlib
import sys
import typing as t
from collections import defaultdict
from functools import update_wrapper
from jinja2 import BaseLoader
from jinja2 import FileSystemLoader
from werkzeug.exceptions import default_exceptions
from werkzeug.exceptions import HTTPException
from werkzeug.utils import cached_property
from .. import typing as ft
from ..helpers import get_root_path
from ..templating import _default_template_ctx_processor
if t.TYPE_CHECKING: # pragma: no cover
from click import Group
# a singleton sentinel value for parameter defaults
_sentinel = object()
F = t.TypeVar("F", bound=t.Callable[..., t.Any])
T_after_request = t.TypeVar("T_after_request", bound=ft.AfterRequestCallable[t.Any])
T_before_request = t.TypeVar("T_before_request", bound=ft.BeforeRequestCallable)
T_error_handler = t.TypeVar("T_error_handler", bound=ft.ErrorHandlerCallable)
T_teardown = t.TypeVar("T_teardown", bound=ft.TeardownCallable)
T_template_context_processor = t.TypeVar(
"T_template_context_processor", bound=ft.TemplateContextProcessorCallable
)
T_url_defaults = t.TypeVar("T_url_defaults", bound=ft.URLDefaultCallable)
T_url_value_preprocessor = t.TypeVar(
"T_url_value_preprocessor", bound=ft.URLValuePreprocessorCallable
)
T_route = t.TypeVar("T_route", bound=ft.RouteCallable)
def setupmethod(f: F) -> F:
f_name = f.__name__
def wrapper_func(self: Scaffold, *args: t.Any, **kwargs: t.Any) -> t.Any:
self._check_setup_finished(f_name)
return f(self, *args, **kwargs)
return t.cast(F, update_wrapper(wrapper_func, f))
class Scaffold:
"""Common behavior shared between :class:`~flask.Flask` and
:class:`~flask.blueprints.Blueprint`.
:param import_name: The import name of the module where this object
is defined. Usually :attr:`__name__` should be used.
:param static_folder: Path to a folder of static files to serve.
If this is set, a static route will be added.
:param static_url_path: URL prefix for the static route.
:param template_folder: Path to a folder containing template files.
for rendering. If this is set, a Jinja loader will be added.
:param root_path: The path that static, template, and resource files
are relative to. Typically not set, it is discovered based on
the ``import_name``.
.. versionadded:: 2.0
"""
cli: Group
name: str
_static_folder: str | None = None
_static_url_path: str | None = None
def __init__(
self,
import_name: str,
static_folder: str | os.PathLike[str] | None = None,
static_url_path: str | None = None,
template_folder: str | os.PathLike[str] | None = None,
root_path: str | None = None,
):
#: The name of the package or module that this object belongs
#: to. Do not change this once it is set by the constructor.
self.import_name = import_name
self.static_folder = static_folder # type: ignore
self.static_url_path = static_url_path
#: The path to the templates folder, relative to
#: :attr:`root_path`, to add to the template loader. ``None`` if
#: templates should not be added.
self.template_folder = template_folder
if root_path is None:
root_path = get_root_path(self.import_name)
#: Absolute path to the package on the filesystem. Used to look
#: up resources contained in the package.
self.root_path = root_path
#: A dictionary mapping endpoint names to view functions.
#:
#: To register a view function, use the :meth:`route` decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.view_functions: dict[str, ft.RouteCallable] = {}
#: A data structure of registered error handlers, in the format
#: ``{scope: {code: {class: handler}}}``. The ``scope`` key is
#: the name of a blueprint the handlers are active for, or
#: ``None`` for all requests. The ``code`` key is the HTTP
#: status code for ``HTTPException``, or ``None`` for
#: other exceptions. The innermost dictionary maps exception
#: classes to handler functions.
#:
#: To register an error handler, use the :meth:`errorhandler`
#: decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.error_handler_spec: dict[
ft.AppOrBlueprintKey,
dict[int | None, dict[type[Exception], ft.ErrorHandlerCallable]],
] = defaultdict(lambda: defaultdict(dict))
#: A data structure of functions to call at the beginning of
#: each request, in the format ``{scope: [functions]}``. The
#: ``scope`` key is the name of a blueprint the functions are
#: active for, or ``None`` for all requests.
#:
#: To register a function, use the :meth:`before_request`
#: decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.before_request_funcs: dict[
ft.AppOrBlueprintKey, list[ft.BeforeRequestCallable]
] = defaultdict(list)
#: A data structure of functions to call at the end of each
#: request, in the format ``{scope: [functions]}``. The
#: ``scope`` key is the name of a blueprint the functions are
#: active for, or ``None`` for all requests.
#:
#: To register a function, use the :meth:`after_request`
#: decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.after_request_funcs: dict[
ft.AppOrBlueprintKey, list[ft.AfterRequestCallable[t.Any]]
] = defaultdict(list)
#: A data structure of functions to call at the end of each
#: request even if an exception is raised, in the format
#: ``{scope: [functions]}``. The ``scope`` key is the name of a
#: blueprint the functions are active for, or ``None`` for all
#: requests.
#:
#: To register a function, use the :meth:`teardown_request`
#: decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.teardown_request_funcs: dict[
ft.AppOrBlueprintKey, list[ft.TeardownCallable]
] = defaultdict(list)
#: A data structure of functions to call to pass extra context
#: values when rendering templates, in the format
#: ``{scope: [functions]}``. The ``scope`` key is the name of a
#: blueprint the functions are active for, or ``None`` for all
#: requests.
#:
#: To register a function, use the :meth:`context_processor`
#: decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.template_context_processors: dict[
ft.AppOrBlueprintKey, list[ft.TemplateContextProcessorCallable]
] = defaultdict(list, {None: [_default_template_ctx_processor]})
#: A data structure of functions to call to modify the keyword
#: arguments passed to the view function, in the format
#: ``{scope: [functions]}``. The ``scope`` key is the name of a
#: blueprint the functions are active for, or ``None`` for all
#: requests.
#:
#: To register a function, use the
#: :meth:`url_value_preprocessor` decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.url_value_preprocessors: dict[
ft.AppOrBlueprintKey,
list[ft.URLValuePreprocessorCallable],
] = defaultdict(list)
#: A data structure of functions to call to modify the keyword
#: arguments when generating URLs, in the format
#: ``{scope: [functions]}``. The ``scope`` key is the name of a
#: blueprint the functions are active for, or ``None`` for all
#: requests.
#:
#: To register a function, use the :meth:`url_defaults`
#: decorator.
#:
#: This data structure is internal. It should not be modified
#: directly and its format may change at any time.
self.url_default_functions: dict[
ft.AppOrBlueprintKey, list[ft.URLDefaultCallable]
] = defaultdict(list)
def __repr__(self) -> str:
return f"<{type(self).__name__} {self.name!r}>"
def _check_setup_finished(self, f_name: str) -> None:
raise NotImplementedError
@property
def static_folder(self) -> str | None:
"""The absolute path to the configured static folder. ``None``
if no static folder is set.
"""
if self._static_folder is not None:
return os.path.join(self.root_path, self._static_folder)
else:
return None
@static_folder.setter
def static_folder(self, value: str | os.PathLike[str] | None) -> None:
if value is not None:
value = os.fspath(value).rstrip(r"\/")
self._static_folder = value
@property
def has_static_folder(self) -> bool:
"""``True`` if :attr:`static_folder` is set.
.. versionadded:: 0.5
"""
return self.static_folder is not None
@property
def static_url_path(self) -> str | None:
"""The URL prefix that the static route will be accessible from.
If it was not configured during init, it is derived from
:attr:`static_folder`.
"""
if self._static_url_path is not None:
return self._static_url_path
if self.static_folder is not None:
basename = os.path.basename(self.static_folder)
return f"/{basename}".rstrip("/")
return None
@static_url_path.setter
def static_url_path(self, value: str | None) -> None:
if value is not None:
value = value.rstrip("/")
self._static_url_path = value
@cached_property
def jinja_loader(self) -> BaseLoader | None:
"""The Jinja loader for this object's templates. By default this
is a class :class:`jinja2.loaders.FileSystemLoader` to
:attr:`template_folder` if it is set.
.. versionadded:: 0.5
"""
if self.template_folder is not None:
return FileSystemLoader(os.path.join(self.root_path, self.template_folder))
else:
return None
def _method_route(
self,
method: str,
rule: str,
options: dict[str, t.Any],
) -> t.Callable[[T_route], T_route]:
if "methods" in options:
raise TypeError("Use the 'route' decorator to use the 'methods' argument.")
return self.route(rule, methods=[method], **options)
@setupmethod
def get(self, rule: str, **options: t.Any) -> t.Callable[[T_route], T_route]:
"""Shortcut for :meth:`route` with ``methods=["GET"]``.
.. versionadded:: 2.0
"""
return self._method_route("GET", rule, options)
@setupmethod
def post(self, rule: str, **options: t.Any) -> t.Callable[[T_route], T_route]:
"""Shortcut for :meth:`route` with ``methods=["POST"]``.
.. versionadded:: 2.0
"""
return self._method_route("POST", rule, options)
@setupmethod
def put(self, rule: str, **options: t.Any) -> t.Callable[[T_route], T_route]:
"""Shortcut for :meth:`route` with ``methods=["PUT"]``.
.. versionadded:: 2.0
"""
return self._method_route("PUT", rule, options)
@setupmethod
def delete(self, rule: str, **options: t.Any) -> t.Callable[[T_route], T_route]:
"""Shortcut for :meth:`route` with ``methods=["DELETE"]``.
.. versionadded:: 2.0
"""
return self._method_route("DELETE", rule, options)
@setupmethod
def patch(self, rule: str, **options: t.Any) -> t.Callable[[T_route], T_route]:
"""Shortcut for :meth:`route` with ``methods=["PATCH"]``.
.. versionadded:: 2.0
"""
return self._method_route("PATCH", rule, options)
@setupmethod
def route(self, rule: str, **options: t.Any) -> t.Callable[[T_route], T_route]:
"""Decorate a view function to register it with the given URL
rule and options. Calls :meth:`add_url_rule`, which has more
details about the implementation.
.. code-block:: python
@app.route("/")
def index():
return "Hello, World!"
See :ref:`url-route-registrations`.
The endpoint name for the route defaults to the name of the view
function if the ``endpoint`` parameter isn't passed.
The ``methods`` parameter defaults to ``["GET"]``. ``HEAD`` and
``OPTIONS`` are added automatically.
:param rule: The URL rule string.
:param options: Extra options passed to the
:class:`~werkzeug.routing.Rule` object.
"""
def decorator(f: T_route) -> T_route:
endpoint = options.pop("endpoint", None)
self.add_url_rule(rule, endpoint, f, **options)
return f
return decorator
@setupmethod
def add_url_rule(
self,
rule: str,
endpoint: str | None = None,
view_func: ft.RouteCallable | None = None,
provide_automatic_options: bool | None = None,
**options: t.Any,
) -> None:
"""Register a rule for routing incoming requests and building
URLs. The :meth:`route` decorator is a shortcut to call this
with the ``view_func`` argument. These are equivalent:
.. code-block:: python
@app.route("/")
def index():
...
.. code-block:: python
def index():
...
app.add_url_rule("/", view_func=index)
See :ref:`url-route-registrations`.
The endpoint name for the route defaults to the name of the view
function if the ``endpoint`` parameter isn't passed. An error
will be raised if a function has already been registered for the
endpoint.
The ``methods`` parameter defaults to ``["GET"]``. ``HEAD`` is
always added automatically, and ``OPTIONS`` is added
automatically by default.
``view_func`` does not necessarily need to be passed, but if the
rule should participate in routing an endpoint name must be
associated with a view function at some point with the
:meth:`endpoint` decorator.
.. code-block:: python
app.add_url_rule("/", endpoint="index")
@app.endpoint("index")
def index():
...
If ``view_func`` has a ``required_methods`` attribute, those
methods are added to the passed and automatic methods. If it
has a ``provide_automatic_methods`` attribute, it is used as the
default if the parameter is not passed.
:param rule: The URL rule string.
:param endpoint: The endpoint name to associate with the rule
and view function. Used when routing and building URLs.
Defaults to ``view_func.__name__``.
:param view_func: The view function to associate with the
endpoint name.
:param provide_automatic_options: Add the ``OPTIONS`` method and
respond to ``OPTIONS`` requests automatically.
:param options: Extra options passed to the
:class:`~werkzeug.routing.Rule` object.
"""
raise NotImplementedError
@setupmethod
def endpoint(self, endpoint: str) -> t.Callable[[F], F]:
"""Decorate a view function to register it for the given
endpoint. Used if a rule is added without a ``view_func`` with
:meth:`add_url_rule`.
.. code-block:: python
app.add_url_rule("/ex", endpoint="example")
@app.endpoint("example")
def example():
...
:param endpoint: The endpoint name to associate with the view
function.
"""
def decorator(f: F) -> F:
self.view_functions[endpoint] = f
return f
return decorator
@setupmethod
def before_request(self, f: T_before_request) -> T_before_request:
"""Register a function to run before each request.
For example, this can be used to open a database connection, or
to load the logged in user from the session.
.. code-block:: python
@app.before_request
def load_user():
if "user_id" in session:
g.user = db.session.get(session["user_id"])
The function will be called without any arguments. If it returns
a non-``None`` value, the value is handled as if it was the
return value from the view, and further request handling is
stopped.
This is available on both app and blueprint objects. When used on an app, this
executes before every request. When used on a blueprint, this executes before
every request that the blueprint handles. To register with a blueprint and
execute before every request, use :meth:`.Blueprint.before_app_request`.
"""
self.before_request_funcs.setdefault(None, []).append(f)
return f
@setupmethod
def after_request(self, f: T_after_request) -> T_after_request:
"""Register a function to run after each request to this object.
The function is called with the response object, and must return
a response object. This allows the functions to modify or
replace the response before it is sent.
If a function raises an exception, any remaining
``after_request`` functions will not be called. Therefore, this
should not be used for actions that must execute, such as to
close resources. Use :meth:`teardown_request` for that.
This is available on both app and blueprint objects. When used on an app, this
executes after every request. When used on a blueprint, this executes after
every request that the blueprint handles. To register with a blueprint and
execute after every request, use :meth:`.Blueprint.after_app_request`.
"""
self.after_request_funcs.setdefault(None, []).append(f)
return f
@setupmethod
def teardown_request(self, f: T_teardown) -> T_teardown:
"""Register a function to be called when the request context is
popped. Typically this happens at the end of each request, but
contexts may be pushed manually as well during testing.
.. code-block:: python
with app.test_request_context():
...
When the ``with`` block exits (or ``ctx.pop()`` is called), the
teardown functions are called just before the request context is
made inactive.
When a teardown function was called because of an unhandled
exception it will be passed an error object. If an
:meth:`errorhandler` is registered, it will handle the exception
and the teardown will not receive it.
Teardown functions must avoid raising exceptions. If they
execute code that might fail they must surround that code with a
``try``/``except`` block and log any errors.
The return values of teardown functions are ignored.
This is available on both app and blueprint objects. When used on an app, this
executes after every request. When used on a blueprint, this executes after
every request that the blueprint handles. To register with a blueprint and
execute after every request, use :meth:`.Blueprint.teardown_app_request`.
"""
self.teardown_request_funcs.setdefault(None, []).append(f)
return f
@setupmethod
def context_processor(
self,
f: T_template_context_processor,
) -> T_template_context_processor:
"""Registers a template context processor function. These functions run before
rendering a template. The keys of the returned dict are added as variables
available in the template.
This is available on both app and blueprint objects. When used on an app, this
is called for every rendered template. When used on a blueprint, this is called
for templates rendered from the blueprint's views. To register with a blueprint
and affect every template, use :meth:`.Blueprint.app_context_processor`.
"""
self.template_context_processors[None].append(f)
return f
@setupmethod
def url_value_preprocessor(
self,
f: T_url_value_preprocessor,
) -> T_url_value_preprocessor:
"""Register a URL value preprocessor function for all view
functions in the application. These functions will be called before the
:meth:`before_request` functions.
The function can modify the values captured from the matched url before
they are passed to the view. For example, this can be used to pop a
common language code value and place it in ``g`` rather than pass it to
every view.
The function is passed the endpoint name and values dict. The return
value is ignored.
This is available on both app and blueprint objects. When used on an app, this
is called for every request. When used on a blueprint, this is called for
requests that the blueprint handles. To register with a blueprint and affect
every request, use :meth:`.Blueprint.app_url_value_preprocessor`.
"""
self.url_value_preprocessors[None].append(f)
return f
@setupmethod
def url_defaults(self, f: T_url_defaults) -> T_url_defaults:
"""Callback function for URL defaults for all view functions of the
application. It's called with the endpoint and values and should
update the values passed in place.
This is available on both app and blueprint objects. When used on an app, this
is called for every request. When used on a blueprint, this is called for
requests that the blueprint handles. To register with a blueprint and affect
every request, use :meth:`.Blueprint.app_url_defaults`.
"""
self.url_default_functions[None].append(f)
return f
@setupmethod
def errorhandler(
self, code_or_exception: type[Exception] | int
) -> t.Callable[[T_error_handler], T_error_handler]:
"""Register a function to handle errors by code or exception class.
A decorator that is used to register a function given an
error code. Example::
@app.errorhandler(404)
def page_not_found(error):
return 'This page does not exist', 404
You can also register handlers for arbitrary exceptions::
@app.errorhandler(DatabaseError)
def special_exception_handler(error):
return 'Database connection failed', 500
This is available on both app and blueprint objects. When used on an app, this
can handle errors from every request. When used on a blueprint, this can handle
errors from requests that the blueprint handles. To register with a blueprint
and affect every request, use :meth:`.Blueprint.app_errorhandler`.
.. versionadded:: 0.7
Use :meth:`register_error_handler` instead of modifying
:attr:`error_handler_spec` directly, for application wide error
handlers.
.. versionadded:: 0.7
One can now additionally also register custom exception types
that do not necessarily have to be a subclass of the
:class:`~werkzeug.exceptions.HTTPException` class.
:param code_or_exception: the code as integer for the handler, or
an arbitrary exception
"""
def decorator(f: T_error_handler) -> T_error_handler:
self.register_error_handler(code_or_exception, f)
return f
return decorator
@setupmethod
def register_error_handler(
self,
code_or_exception: type[Exception] | int,
f: ft.ErrorHandlerCallable,
) -> None:
"""Alternative error attach function to the :meth:`errorhandler`
decorator that is more straightforward to use for non decorator
usage.
.. versionadded:: 0.7
"""
exc_class, code = self._get_exc_class_and_code(code_or_exception)
self.error_handler_spec[None][code][exc_class] = f
@staticmethod
def _get_exc_class_and_code(
exc_class_or_code: type[Exception] | int,
) -> tuple[type[Exception], int | None]:
"""Get the exception class being handled. For HTTP status codes
or ``HTTPException`` subclasses, return both the exception and
status code.
:param exc_class_or_code: Any exception class, or an HTTP status
code as an integer.
"""
exc_class: type[Exception]
if isinstance(exc_class_or_code, int):
try:
exc_class = default_exceptions[exc_class_or_code]
except KeyError:
raise ValueError(
f"'{exc_class_or_code}' is not a recognized HTTP"
" error code. Use a subclass of HTTPException with"
" that code instead."
) from None
else:
exc_class = exc_class_or_code
if isinstance(exc_class, Exception):
raise TypeError(
f"{exc_class!r} is an instance, not a class. Handlers"
" can only be registered for Exception classes or HTTP"
" error codes."
)
if not issubclass(exc_class, Exception):
raise ValueError(
f"'{exc_class.__name__}' is not a subclass of Exception."
" Handlers can only be registered for Exception classes"
" or HTTP error codes."
)
if issubclass(exc_class, HTTPException):
return exc_class, exc_class.code
else:
return exc_class, None
def _endpoint_from_view_func(view_func: ft.RouteCallable) -> str:
"""Internal helper that returns the default endpoint for a given
function. This always is the function name.
"""
assert view_func is not None, "expected view func if endpoint is not provided."
return view_func.__name__
def _path_is_relative_to(path: pathlib.PurePath, base: str) -> bool:
# Path.is_relative_to doesn't exist until Python 3.9
try:
path.relative_to(base)
return True
except ValueError:
return False
def _find_package_path(import_name: str) -> str:
"""Find the path that contains the package or module."""
root_mod_name, _, _ = import_name.partition(".")
try:
root_spec = importlib.util.find_spec(root_mod_name)
if root_spec is None:
raise ValueError("not found")
except (ImportError, ValueError):
# ImportError: the machinery told us it does not exist
# ValueError:
# - the module name was invalid
# - the module name is __main__
# - we raised `ValueError` due to `root_spec` being `None`
return os.getcwd()
if root_spec.submodule_search_locations:
if root_spec.origin is None or root_spec.origin == "namespace":
# namespace package
package_spec = importlib.util.find_spec(import_name)
if package_spec is not None and package_spec.submodule_search_locations:
# Pick the path in the namespace that contains the submodule.
package_path = pathlib.Path(
os.path.commonpath(package_spec.submodule_search_locations)
)
search_location = next(
location
for location in root_spec.submodule_search_locations
if _path_is_relative_to(package_path, location)
)
else:
# Pick the first path.
search_location = root_spec.submodule_search_locations[0]
return os.path.dirname(search_location)
else:
# package with __init__.py
return os.path.dirname(os.path.dirname(root_spec.origin))
else:
# module
return os.path.dirname(root_spec.origin) # type: ignore[type-var, return-value]
def find_package(import_name: str) -> tuple[str | None, str]:
"""Find the prefix that a package is installed under, and the path
that it would be imported from.
The prefix is the directory containing the standard directory
hierarchy (lib, bin, etc.). If the package is not installed to the
system (:attr:`sys.prefix`) or a virtualenv (``site-packages``),
``None`` is returned.
The path is the entry in :attr:`sys.path` that contains the package
for import. If the package is not installed, it's assumed that the
package was imported from the current working directory.
"""
package_path = _find_package_path(import_name)
py_prefix = os.path.abspath(sys.prefix)
# installed to the system
if _path_is_relative_to(pathlib.PurePath(package_path), py_prefix):
return py_prefix, package_path
site_parent, site_folder = os.path.split(package_path)
# installed to a virtualenv
if site_folder.lower() == "site-packages":
parent, folder = os.path.split(site_parent)
# Windows (prefix/lib/site-packages)
if folder.lower() == "lib":
return parent, package_path
# Unix (prefix/lib/pythonX.Y/site-packages)
if os.path.basename(parent).lower() == "lib":
return os.path.dirname(parent), package_path
# something else (prefix/site-packages)
return site_parent, package_path
# not installed
return None, package_path
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/sessions.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import hashlib
import typing as t
from collections.abc import MutableMapping
from datetime import datetime
from datetime import timezone
from itsdangerous import BadSignature
from itsdangerous import URLSafeTimedSerializer
from werkzeug.datastructures import CallbackDict
from .json.tag import TaggedJSONSerializer
if t.TYPE_CHECKING: # pragma: no cover
import typing_extensions as te
from .app import Flask
from .wrappers import Request
from .wrappers import Response
# TODO generic when Python > 3.8
class SessionMixin(MutableMapping): # type: ignore[type-arg]
"""Expands a basic dictionary with session attributes."""
@property
def permanent(self) -> bool:
"""This reflects the ``'_permanent'`` key in the dict."""
return self.get("_permanent", False)
@permanent.setter
def permanent(self, value: bool) -> None:
self["_permanent"] = bool(value)
#: Some implementations can detect whether a session is newly
#: created, but that is not guaranteed. Use with caution. The mixin
# default is hard-coded ``False``.
new = False
#: Some implementations can detect changes to the session and set
#: this when that happens. The mixin default is hard coded to
#: ``True``.
modified = True
#: Some implementations can detect when session data is read or
#: written and set this when that happens. The mixin default is hard
#: coded to ``True``.
accessed = True
# TODO generic when Python > 3.8
class SecureCookieSession(CallbackDict, SessionMixin): # type: ignore[type-arg]
"""Base class for sessions based on signed cookies.
This session backend will set the :attr:`modified` and
:attr:`accessed` attributes. It cannot reliably track whether a
session is new (vs. empty), so :attr:`new` remains hard coded to
``False``.
"""
#: When data is changed, this is set to ``True``. Only the session
#: dictionary itself is tracked; if the session contains mutable
#: data (for example a nested dict) then this must be set to
#: ``True`` manually when modifying that data. The session cookie
#: will only be written to the response if this is ``True``.
modified = False
#: When data is read or written, this is set to ``True``. Used by
# :class:`.SecureCookieSessionInterface` to add a ``Vary: Cookie``
#: header, which allows caching proxies to cache different pages for
#: different users.
accessed = False
def __init__(self, initial: t.Any = None) -> None:
def on_update(self: te.Self) -> None:
self.modified = True
self.accessed = True
super().__init__(initial, on_update)
def __getitem__(self, key: str) -> t.Any:
self.accessed = True
return super().__getitem__(key)
def get(self, key: str, default: t.Any = None) -> t.Any:
self.accessed = True
return super().get(key, default)
def setdefault(self, key: str, default: t.Any = None) -> t.Any:
self.accessed = True
return super().setdefault(key, default)
class NullSession(SecureCookieSession):
"""Class used to generate nicer error messages if sessions are not
available. Will still allow read-only access to the empty session
but fail on setting.
"""
def _fail(self, *args: t.Any, **kwargs: t.Any) -> t.NoReturn:
raise RuntimeError(
"The session is unavailable because no secret "
"key was set. Set the secret_key on the "
"application to something unique and secret."
)
__setitem__ = __delitem__ = clear = pop = popitem = update = setdefault = _fail # type: ignore # noqa: B950
del _fail
class SessionInterface:
"""The basic interface you have to implement in order to replace the
default session interface which uses werkzeug's securecookie
implementation. The only methods you have to implement are
:meth:`open_session` and :meth:`save_session`, the others have
useful defaults which you don't need to change.
The session object returned by the :meth:`open_session` method has to
provide a dictionary like interface plus the properties and methods
from the :class:`SessionMixin`. We recommend just subclassing a dict
and adding that mixin::
class Session(dict, SessionMixin):
pass
If :meth:`open_session` returns ``None`` Flask will call into
:meth:`make_null_session` to create a session that acts as replacement
if the session support cannot work because some requirement is not
fulfilled. The default :class:`NullSession` class that is created
will complain that the secret key was not set.
To replace the session interface on an application all you have to do
is to assign :attr:`flask.Flask.session_interface`::
app = Flask(__name__)
app.session_interface = MySessionInterface()
Multiple requests with the same session may be sent and handled
concurrently. When implementing a new session interface, consider
whether reads or writes to the backing store must be synchronized.
There is no guarantee on the order in which the session for each
request is opened or saved, it will occur in the order that requests
begin and end processing.
.. versionadded:: 0.8
"""
#: :meth:`make_null_session` will look here for the class that should
#: be created when a null session is requested. Likewise the
#: :meth:`is_null_session` method will perform a typecheck against
#: this type.
null_session_class = NullSession
#: A flag that indicates if the session interface is pickle based.
#: This can be used by Flask extensions to make a decision in regards
#: to how to deal with the session object.
#:
#: .. versionadded:: 0.10
pickle_based = False
def make_null_session(self, app: Flask) -> NullSession:
"""Creates a null session which acts as a replacement object if the
real session support could not be loaded due to a configuration
error. This mainly aids the user experience because the job of the
null session is to still support lookup without complaining but
modifications are answered with a helpful error message of what
failed.
This creates an instance of :attr:`null_session_class` by default.
"""
return self.null_session_class()
def is_null_session(self, obj: object) -> bool:
"""Checks if a given object is a null session. Null sessions are
not asked to be saved.
This checks if the object is an instance of :attr:`null_session_class`
by default.
"""
return isinstance(obj, self.null_session_class)
def get_cookie_name(self, app: Flask) -> str:
"""The name of the session cookie. Uses``app.config["SESSION_COOKIE_NAME"]``."""
return app.config["SESSION_COOKIE_NAME"] # type: ignore[no-any-return]
def get_cookie_domain(self, app: Flask) -> str | None:
"""The value of the ``Domain`` parameter on the session cookie. If not set,
browsers will only send the cookie to the exact domain it was set from.
Otherwise, they will send it to any subdomain of the given value as well.
Uses the :data:`SESSION_COOKIE_DOMAIN` config.
.. versionchanged:: 2.3
Not set by default, does not fall back to ``SERVER_NAME``.
"""
return app.config["SESSION_COOKIE_DOMAIN"] # type: ignore[no-any-return]
def get_cookie_path(self, app: Flask) -> str:
"""Returns the path for which the cookie should be valid. The
default implementation uses the value from the ``SESSION_COOKIE_PATH``
config var if it's set, and falls back to ``APPLICATION_ROOT`` or
uses ``/`` if it's ``None``.
"""
return app.config["SESSION_COOKIE_PATH"] or app.config["APPLICATION_ROOT"] # type: ignore[no-any-return]
def get_cookie_httponly(self, app: Flask) -> bool:
"""Returns True if the session cookie should be httponly. This
currently just returns the value of the ``SESSION_COOKIE_HTTPONLY``
config var.
"""
return app.config["SESSION_COOKIE_HTTPONLY"] # type: ignore[no-any-return]
def get_cookie_secure(self, app: Flask) -> bool:
"""Returns True if the cookie should be secure. This currently
just returns the value of the ``SESSION_COOKIE_SECURE`` setting.
"""
return app.config["SESSION_COOKIE_SECURE"] # type: ignore[no-any-return]
def get_cookie_samesite(self, app: Flask) -> str | None:
"""Return ``'Strict'`` or ``'Lax'`` if the cookie should use the
``SameSite`` attribute. This currently just returns the value of
the :data:`SESSION_COOKIE_SAMESITE` setting.
"""
return app.config["SESSION_COOKIE_SAMESITE"] # type: ignore[no-any-return]
def get_expiration_time(self, app: Flask, session: SessionMixin) -> datetime | None:
"""A helper method that returns an expiration date for the session
or ``None`` if the session is linked to the browser session. The
default implementation returns now + the permanent session
lifetime configured on the application.
"""
if session.permanent:
return datetime.now(timezone.utc) + app.permanent_session_lifetime
return None
def should_set_cookie(self, app: Flask, session: SessionMixin) -> bool:
"""Used by session backends to determine if a ``Set-Cookie`` header
should be set for this session cookie for this response. If the session
has been modified, the cookie is set. If the session is permanent and
the ``SESSION_REFRESH_EACH_REQUEST`` config is true, the cookie is
always set.
This check is usually skipped if the session was deleted.
.. versionadded:: 0.11
"""
return session.modified or (
session.permanent and app.config["SESSION_REFRESH_EACH_REQUEST"]
)
def open_session(self, app: Flask, request: Request) -> SessionMixin | None:
"""This is called at the beginning of each request, after
pushing the request context, before matching the URL.
This must return an object which implements a dictionary-like
interface as well as the :class:`SessionMixin` interface.
This will return ``None`` to indicate that loading failed in
some way that is not immediately an error. The request
context will fall back to using :meth:`make_null_session`
in this case.
"""
raise NotImplementedError()
def save_session(
self, app: Flask, session: SessionMixin, response: Response
) -> None:
"""This is called at the end of each request, after generating
a response, before removing the request context. It is skipped
if :meth:`is_null_session` returns ``True``.
"""
raise NotImplementedError()
session_json_serializer = TaggedJSONSerializer()
def _lazy_sha1(string: bytes = b"") -> t.Any:
"""Don't access ``hashlib.sha1`` until runtime. FIPS builds may not include
SHA-1, in which case the import and use as a default would fail before the
developer can configure something else.
"""
return hashlib.sha1(string)
class SecureCookieSessionInterface(SessionInterface):
"""The default session interface that stores sessions in signed cookies
through the :mod:`itsdangerous` module.
"""
#: the salt that should be applied on top of the secret key for the
#: signing of cookie based sessions.
salt = "cookie-session"
#: the hash function to use for the signature. The default is sha1
digest_method = staticmethod(_lazy_sha1)
#: the name of the itsdangerous supported key derivation. The default
#: is hmac.
key_derivation = "hmac"
#: A python serializer for the payload. The default is a compact
#: JSON derived serializer with support for some extra Python types
#: such as datetime objects or tuples.
serializer = session_json_serializer
session_class = SecureCookieSession
def get_signing_serializer(self, app: Flask) -> URLSafeTimedSerializer | None:
if not app.secret_key:
return None
signer_kwargs = dict(
key_derivation=self.key_derivation, digest_method=self.digest_method
)
return URLSafeTimedSerializer(
app.secret_key,
salt=self.salt,
serializer=self.serializer,
signer_kwargs=signer_kwargs,
)
def open_session(self, app: Flask, request: Request) -> SecureCookieSession | None:
s = self.get_signing_serializer(app)
if s is None:
return None
val = request.cookies.get(self.get_cookie_name(app))
if not val:
return self.session_class()
max_age = int(app.permanent_session_lifetime.total_seconds())
try:
data = s.loads(val, max_age=max_age)
return self.session_class(data)
except BadSignature:
return self.session_class()
def save_session(
self, app: Flask, session: SessionMixin, response: Response
) -> None:
name = self.get_cookie_name(app)
domain = self.get_cookie_domain(app)
path = self.get_cookie_path(app)
secure = self.get_cookie_secure(app)
samesite = self.get_cookie_samesite(app)
httponly = self.get_cookie_httponly(app)
# Add a "Vary: Cookie" header if the session was accessed at all.
if session.accessed:
response.vary.add("Cookie")
# If the session is modified to be empty, remove the cookie.
# If the session is empty, return without setting the cookie.
if not session:
if session.modified:
response.delete_cookie(
name,
domain=domain,
path=path,
secure=secure,
samesite=samesite,
httponly=httponly,
)
response.vary.add("Cookie")
return
if not self.should_set_cookie(app, session):
return
expires = self.get_expiration_time(app, session)
val = self.get_signing_serializer(app).dumps(dict(session)) # type: ignore
response.set_cookie(
name,
val, # type: ignore
expires=expires,
httponly=httponly,
domain=domain,
path=path,
secure=secure,
samesite=samesite,
)
response.vary.add("Cookie")
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/signals.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
from blinker import Namespace
# This namespace is only for signals provided by Flask itself.
_signals = Namespace()
template_rendered = _signals.signal("template-rendered")
before_render_template = _signals.signal("before-render-template")
request_started = _signals.signal("request-started")
request_finished = _signals.signal("request-finished")
request_tearing_down = _signals.signal("request-tearing-down")
got_request_exception = _signals.signal("got-request-exception")
appcontext_tearing_down = _signals.signal("appcontext-tearing-down")
appcontext_pushed = _signals.signal("appcontext-pushed")
appcontext_popped = _signals.signal("appcontext-popped")
message_flashed = _signals.signal("message-flashed")
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/templating.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import typing as t
from jinja2 import BaseLoader
from jinja2 import Environment as BaseEnvironment
from jinja2 import Template
from jinja2 import TemplateNotFound
from .globals import _cv_app
from .globals import _cv_request
from .globals import current_app
from .globals import request
from .helpers import stream_with_context
from .signals import before_render_template
from .signals import template_rendered
if t.TYPE_CHECKING: # pragma: no cover
from .app import Flask
from .sansio.app import App
from .sansio.scaffold import Scaffold
def _default_template_ctx_processor() -> dict[str, t.Any]:
"""Default template context processor. Injects `request`,
`session` and `g`.
"""
appctx = _cv_app.get(None)
reqctx = _cv_request.get(None)
rv: dict[str, t.Any] = {}
if appctx is not None:
rv["g"] = appctx.g
if reqctx is not None:
rv["request"] = reqctx.request
rv["session"] = reqctx.session
return rv
class Environment(BaseEnvironment):
"""Works like a regular Jinja2 environment but has some additional
knowledge of how Flask's blueprint works so that it can prepend the
name of the blueprint to referenced templates if necessary.
"""
def __init__(self, app: App, **options: t.Any) -> None:
if "loader" not in options:
options["loader"] = app.create_global_jinja_loader()
BaseEnvironment.__init__(self, **options)
self.app = app
class DispatchingJinjaLoader(BaseLoader):
"""A loader that looks for templates in the application and all
the blueprint folders.
"""
def __init__(self, app: App) -> None:
self.app = app
def get_source(
self, environment: BaseEnvironment, template: str
) -> tuple[str, str | None, t.Callable[[], bool] | None]:
if self.app.config["EXPLAIN_TEMPLATE_LOADING"]:
return self._get_source_explained(environment, template)
return self._get_source_fast(environment, template)
def _get_source_explained(
self, environment: BaseEnvironment, template: str
) -> tuple[str, str | None, t.Callable[[], bool] | None]:
attempts = []
rv: tuple[str, str | None, t.Callable[[], bool] | None] | None
trv: None | (tuple[str, str | None, t.Callable[[], bool] | None]) = None
for srcobj, loader in self._iter_loaders(template):
try:
rv = loader.get_source(environment, template)
if trv is None:
trv = rv
except TemplateNotFound:
rv = None
attempts.append((loader, srcobj, rv))
from .debughelpers import explain_template_loading_attempts
explain_template_loading_attempts(self.app, template, attempts)
if trv is not None:
return trv
raise TemplateNotFound(template)
def _get_source_fast(
self, environment: BaseEnvironment, template: str
) -> tuple[str, str | None, t.Callable[[], bool] | None]:
for _srcobj, loader in self._iter_loaders(template):
try:
return loader.get_source(environment, template)
except TemplateNotFound:
continue
raise TemplateNotFound(template)
def _iter_loaders(self, template: str) -> t.Iterator[tuple[Scaffold, BaseLoader]]:
loader = self.app.jinja_loader
if loader is not None:
yield self.app, loader
for blueprint in self.app.iter_blueprints():
loader = blueprint.jinja_loader
if loader is not None:
yield blueprint, loader
def list_templates(self) -> list[str]:
result = set()
loader = self.app.jinja_loader
if loader is not None:
result.update(loader.list_templates())
for blueprint in self.app.iter_blueprints():
loader = blueprint.jinja_loader
if loader is not None:
for template in loader.list_templates():
result.add(template)
return list(result)
def _render(app: Flask, template: Template, context: dict[str, t.Any]) -> str:
app.update_template_context(context)
before_render_template.send(
app, _async_wrapper=app.ensure_sync, template=template, context=context
)
rv = template.render(context)
template_rendered.send(
app, _async_wrapper=app.ensure_sync, template=template, context=context
)
return rv
def render_template(
template_name_or_list: str | Template | list[str | Template],
**context: t.Any,
) -> str:
"""Render a template by name with the given context.
:param template_name_or_list: The name of the template to render. If
a list is given, the first name to exist will be rendered.
:param context: The variables to make available in the template.
"""
app = current_app._get_current_object() # type: ignore[attr-defined]
template = app.jinja_env.get_or_select_template(template_name_or_list)
return _render(app, template, context)
def render_template_string(source: str, **context: t.Any) -> str:
"""Render a template from the given source string with the given
context.
:param source: The source code of the template to render.
:param context: The variables to make available in the template.
"""
app = current_app._get_current_object() # type: ignore[attr-defined]
template = app.jinja_env.from_string(source)
return _render(app, template, context)
def _stream(
app: Flask, template: Template, context: dict[str, t.Any]
) -> t.Iterator[str]:
app.update_template_context(context)
before_render_template.send(
app, _async_wrapper=app.ensure_sync, template=template, context=context
)
def generate() -> t.Iterator[str]:
yield from template.generate(context)
template_rendered.send(
app, _async_wrapper=app.ensure_sync, template=template, context=context
)
rv = generate()
# If a request context is active, keep it while generating.
if request:
rv = stream_with_context(rv)
return rv
def stream_template(
template_name_or_list: str | Template | list[str | Template],
**context: t.Any,
) -> t.Iterator[str]:
"""Render a template by name with the given context as a stream.
This returns an iterator of strings, which can be used as a
streaming response from a view.
:param template_name_or_list: The name of the template to render. If
a list is given, the first name to exist will be rendered.
:param context: The variables to make available in the template.
.. versionadded:: 2.2
"""
app = current_app._get_current_object() # type: ignore[attr-defined]
template = app.jinja_env.get_or_select_template(template_name_or_list)
return _stream(app, template, context)
def stream_template_string(source: str, **context: t.Any) -> t.Iterator[str]:
"""Render a template from the given source string with the given
context as a stream. This returns an iterator of strings, which can
be used as a streaming response from a view.
:param source: The source code of the template to render.
:param context: The variables to make available in the template.
.. versionadded:: 2.2
"""
app = current_app._get_current_object() # type: ignore[attr-defined]
template = app.jinja_env.from_string(source)
return _stream(app, template, context)
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/testing.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import importlib.metadata
import typing as t
from contextlib import contextmanager
from contextlib import ExitStack
from copy import copy
from types import TracebackType
from urllib.parse import urlsplit
import werkzeug.test
from click.testing import CliRunner
from werkzeug.test import Client
from werkzeug.wrappers import Request as BaseRequest
from .cli import ScriptInfo
from .sessions import SessionMixin
if t.TYPE_CHECKING: # pragma: no cover
from _typeshed.wsgi import WSGIEnvironment
from werkzeug.test import TestResponse
from .app import Flask
class EnvironBuilder(werkzeug.test.EnvironBuilder):
"""An :class:`~werkzeug.test.EnvironBuilder`, that takes defaults from the
application.
:param app: The Flask application to configure the environment from.
:param path: URL path being requested.
:param base_url: Base URL where the app is being served, which
``path`` is relative to. If not given, built from
:data:`PREFERRED_URL_SCHEME`, ``subdomain``,
:data:`SERVER_NAME`, and :data:`APPLICATION_ROOT`.
:param subdomain: Subdomain name to append to :data:`SERVER_NAME`.
:param url_scheme: Scheme to use instead of
:data:`PREFERRED_URL_SCHEME`.
:param json: If given, this is serialized as JSON and passed as
``data``. Also defaults ``content_type`` to
``application/json``.
:param args: other positional arguments passed to
:class:`~werkzeug.test.EnvironBuilder`.
:param kwargs: other keyword arguments passed to
:class:`~werkzeug.test.EnvironBuilder`.
"""
def __init__(
self,
app: Flask,
path: str = "/",
base_url: str | None = None,
subdomain: str | None = None,
url_scheme: str | None = None,
*args: t.Any,
**kwargs: t.Any,
) -> None:
assert not (base_url or subdomain or url_scheme) or (
base_url is not None
) != bool(
subdomain or url_scheme
), 'Cannot pass "subdomain" or "url_scheme" with "base_url".'
if base_url is None:
http_host = app.config.get("SERVER_NAME") or "localhost"
app_root = app.config["APPLICATION_ROOT"]
if subdomain:
http_host = f"{subdomain}.{http_host}"
if url_scheme is None:
url_scheme = app.config["PREFERRED_URL_SCHEME"]
url = urlsplit(path)
base_url = (
f"{url.scheme or url_scheme}://{url.netloc or http_host}"
f"/{app_root.lstrip('/')}"
)
path = url.path
if url.query:
sep = b"?" if isinstance(url.query, bytes) else "?"
path += sep + url.query
self.app = app
super().__init__(path, base_url, *args, **kwargs)
def json_dumps(self, obj: t.Any, **kwargs: t.Any) -> str: # type: ignore
"""Serialize ``obj`` to a JSON-formatted string.
The serialization will be configured according to the config associated
with this EnvironBuilder's ``app``.
"""
return self.app.json.dumps(obj, **kwargs)
_werkzeug_version = ""
def _get_werkzeug_version() -> str:
global _werkzeug_version
if not _werkzeug_version:
_werkzeug_version = importlib.metadata.version("werkzeug")
return _werkzeug_version
class FlaskClient(Client):
"""Works like a regular Werkzeug test client but has knowledge about
Flask's contexts to defer the cleanup of the request context until
the end of a ``with`` block. For general information about how to
use this class refer to :class:`werkzeug.test.Client`.
.. versionchanged:: 0.12
`app.test_client()` includes preset default environment, which can be
set after instantiation of the `app.test_client()` object in
`client.environ_base`.
Basic usage is outlined in the :doc:`/testing` chapter.
"""
application: Flask
def __init__(self, *args: t.Any, **kwargs: t.Any) -> None:
super().__init__(*args, **kwargs)
self.preserve_context = False
self._new_contexts: list[t.ContextManager[t.Any]] = []
self._context_stack = ExitStack()
self.environ_base = {
"REMOTE_ADDR": "127.0.0.1",
"HTTP_USER_AGENT": f"Werkzeug/{_get_werkzeug_version()}",
}
@contextmanager
def session_transaction(
self, *args: t.Any, **kwargs: t.Any
) -> t.Iterator[SessionMixin]:
"""When used in combination with a ``with`` statement this opens a
session transaction. This can be used to modify the session that
the test client uses. Once the ``with`` block is left the session is
stored back.
::
with client.session_transaction() as session:
session['value'] = 42
Internally this is implemented by going through a temporary test
request context and since session handling could depend on
request variables this function accepts the same arguments as
:meth:`~flask.Flask.test_request_context` which are directly
passed through.
"""
if self._cookies is None:
raise TypeError(
"Cookies are disabled. Create a client with 'use_cookies=True'."
)
app = self.application
ctx = app.test_request_context(*args, **kwargs)
self._add_cookies_to_wsgi(ctx.request.environ)
with ctx:
sess = app.session_interface.open_session(app, ctx.request)
if sess is None:
raise RuntimeError("Session backend did not open a session.")
yield sess
resp = app.response_class()
if app.session_interface.is_null_session(sess):
return
with ctx:
app.session_interface.save_session(app, sess, resp)
self._update_cookies_from_response(
ctx.request.host.partition(":")[0],
ctx.request.path,
resp.headers.getlist("Set-Cookie"),
)
def _copy_environ(self, other: WSGIEnvironment) -> WSGIEnvironment:
out = {**self.environ_base, **other}
if self.preserve_context:
out["werkzeug.debug.preserve_context"] = self._new_contexts.append
return out
def _request_from_builder_args(
self, args: tuple[t.Any, ...], kwargs: dict[str, t.Any]
) -> BaseRequest:
kwargs["environ_base"] = self._copy_environ(kwargs.get("environ_base", {}))
builder = EnvironBuilder(self.application, *args, **kwargs)
try:
return builder.get_request()
finally:
builder.close()
def open(
self,
*args: t.Any,
buffered: bool = False,
follow_redirects: bool = False,
**kwargs: t.Any,
) -> TestResponse:
if args and isinstance(
args[0], (werkzeug.test.EnvironBuilder, dict, BaseRequest)
):
if isinstance(args[0], werkzeug.test.EnvironBuilder):
builder = copy(args[0])
builder.environ_base = self._copy_environ(builder.environ_base or {}) # type: ignore[arg-type]
request = builder.get_request()
elif isinstance(args[0], dict):
request = EnvironBuilder.from_environ(
args[0], app=self.application, environ_base=self._copy_environ({})
).get_request()
else:
# isinstance(args[0], BaseRequest)
request = copy(args[0])
request.environ = self._copy_environ(request.environ)
else:
# request is None
request = self._request_from_builder_args(args, kwargs)
# Pop any previously preserved contexts. This prevents contexts
# from being preserved across redirects or multiple requests
# within a single block.
self._context_stack.close()
response = super().open(
request,
buffered=buffered,
follow_redirects=follow_redirects,
)
response.json_module = self.application.json # type: ignore[assignment]
# Re-push contexts that were preserved during the request.
while self._new_contexts:
cm = self._new_contexts.pop()
self._context_stack.enter_context(cm)
return response
def __enter__(self) -> FlaskClient:
if self.preserve_context:
raise RuntimeError("Cannot nest client invocations")
self.preserve_context = True
return self
def __exit__(
self,
exc_type: type | None,
exc_value: BaseException | None,
tb: TracebackType | None,
) -> None:
self.preserve_context = False
self._context_stack.close()
class FlaskCliRunner(CliRunner):
"""A :class:`~click.testing.CliRunner` for testing a Flask app's
CLI commands. Typically created using
:meth:`~flask.Flask.test_cli_runner`. See :ref:`testing-cli`.
"""
def __init__(self, app: Flask, **kwargs: t.Any) -> None:
self.app = app
super().__init__(**kwargs)
def invoke( # type: ignore
self, cli: t.Any = None, args: t.Any = None, **kwargs: t.Any
) -> t.Any:
"""Invokes a CLI command in an isolated environment. See
:meth:`CliRunner.invoke <click.testing.CliRunner.invoke>` for
full method documentation. See :ref:`testing-cli` for examples.
If the ``obj`` argument is not given, passes an instance of
:class:`~flask.cli.ScriptInfo` that knows how to load the Flask
app being tested.
:param cli: Command object to invoke. Default is the app's
:attr:`~flask.app.Flask.cli` group.
:param args: List of strings to invoke the command with.
:return: a :class:`~click.testing.Result` object.
"""
if cli is None:
cli = self.app.cli
if "obj" not in kwargs:
kwargs["obj"] = ScriptInfo(create_app=lambda: self.app)
return super().invoke(cli, args, **kwargs)
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/typing.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import typing as t
if t.TYPE_CHECKING: # pragma: no cover
from _typeshed.wsgi import WSGIApplication # noqa: F401
from werkzeug.datastructures import Headers # noqa: F401
from werkzeug.sansio.response import Response # noqa: F401
# The possible types that are directly convertible or are a Response object.
ResponseValue = t.Union[
"Response",
str,
bytes,
t.List[t.Any],
# Only dict is actually accepted, but Mapping allows for TypedDict.
t.Mapping[str, t.Any],
t.Iterator[str],
t.Iterator[bytes],
]
# the possible types for an individual HTTP header
# This should be a Union, but mypy doesn't pass unless it's a TypeVar.
HeaderValue = t.Union[str, t.List[str], t.Tuple[str, ...]]
# the possible types for HTTP headers
HeadersValue = t.Union[
"Headers",
t.Mapping[str, HeaderValue],
t.Sequence[t.Tuple[str, HeaderValue]],
]
# The possible types returned by a route function.
ResponseReturnValue = t.Union[
ResponseValue,
t.Tuple[ResponseValue, HeadersValue],
t.Tuple[ResponseValue, int],
t.Tuple[ResponseValue, int, HeadersValue],
"WSGIApplication",
]
# Allow any subclass of werkzeug.Response, such as the one from Flask,
# as a callback argument. Using werkzeug.Response directly makes a
# callback annotated with flask.Response fail type checking.
ResponseClass = t.TypeVar("ResponseClass", bound="Response")
AppOrBlueprintKey = t.Optional[str] # The App key is None, whereas blueprints are named
AfterRequestCallable = t.Union[
t.Callable[[ResponseClass], ResponseClass],
t.Callable[[ResponseClass], t.Awaitable[ResponseClass]],
]
BeforeFirstRequestCallable = t.Union[
t.Callable[[], None], t.Callable[[], t.Awaitable[None]]
]
BeforeRequestCallable = t.Union[
t.Callable[[], t.Optional[ResponseReturnValue]],
t.Callable[[], t.Awaitable[t.Optional[ResponseReturnValue]]],
]
ShellContextProcessorCallable = t.Callable[[], t.Dict[str, t.Any]]
TeardownCallable = t.Union[
t.Callable[[t.Optional[BaseException]], None],
t.Callable[[t.Optional[BaseException]], t.Awaitable[None]],
]
TemplateContextProcessorCallable = t.Union[
t.Callable[[], t.Dict[str, t.Any]],
t.Callable[[], t.Awaitable[t.Dict[str, t.Any]]],
]
TemplateFilterCallable = t.Callable[..., t.Any]
TemplateGlobalCallable = t.Callable[..., t.Any]
TemplateTestCallable = t.Callable[..., bool]
URLDefaultCallable = t.Callable[[str, t.Dict[str, t.Any]], None]
URLValuePreprocessorCallable = t.Callable[
[t.Optional[str], t.Optional[t.Dict[str, t.Any]]], None
]
# This should take Exception, but that either breaks typing the argument
# with a specific exception, or decorating multiple times with different
# exceptions (and using a union type on the argument).
# https://github.com/pallets/flask/issues/4095
# https://github.com/pallets/flask/issues/4295
# https://github.com/pallets/flask/issues/4297
ErrorHandlerCallable = t.Union[
t.Callable[[t.Any], ResponseReturnValue],
t.Callable[[t.Any], t.Awaitable[ResponseReturnValue]],
]
RouteCallable = t.Union[
t.Callable[..., ResponseReturnValue],
t.Callable[..., t.Awaitable[ResponseReturnValue]],
]
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/views.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import typing as t
from . import typing as ft
from .globals import current_app
from .globals import request
F = t.TypeVar("F", bound=t.Callable[..., t.Any])
http_method_funcs = frozenset(
["get", "post", "head", "options", "delete", "put", "trace", "patch"]
)
class View:
"""Subclass this class and override :meth:`dispatch_request` to
create a generic class-based view. Call :meth:`as_view` to create a
view function that creates an instance of the class with the given
arguments and calls its ``dispatch_request`` method with any URL
variables.
See :doc:`views` for a detailed guide.
.. code-block:: python
class Hello(View):
init_every_request = False
def dispatch_request(self, name):
return f"Hello, {name}!"
app.add_url_rule(
"/hello/<name>", view_func=Hello.as_view("hello")
)
Set :attr:`methods` on the class to change what methods the view
accepts.
Set :attr:`decorators` on the class to apply a list of decorators to
the generated view function. Decorators applied to the class itself
will not be applied to the generated view function!
Set :attr:`init_every_request` to ``False`` for efficiency, unless
you need to store request-global data on ``self``.
"""
#: The methods this view is registered for. Uses the same default
#: (``["GET", "HEAD", "OPTIONS"]``) as ``route`` and
#: ``add_url_rule`` by default.
methods: t.ClassVar[t.Collection[str] | None] = None
#: Control whether the ``OPTIONS`` method is handled automatically.
#: Uses the same default (``True``) as ``route`` and
#: ``add_url_rule`` by default.
provide_automatic_options: t.ClassVar[bool | None] = None
#: A list of decorators to apply, in order, to the generated view
#: function. Remember that ``@decorator`` syntax is applied bottom
#: to top, so the first decorator in the list would be the bottom
#: decorator.
#:
#: .. versionadded:: 0.8
decorators: t.ClassVar[list[t.Callable[[F], F]]] = []
#: Create a new instance of this view class for every request by
#: default. If a view subclass sets this to ``False``, the same
#: instance is used for every request.
#:
#: A single instance is more efficient, especially if complex setup
#: is done during init. However, storing data on ``self`` is no
#: longer safe across requests, and :data:`~flask.g` should be used
#: instead.
#:
#: .. versionadded:: 2.2
init_every_request: t.ClassVar[bool] = True
def dispatch_request(self) -> ft.ResponseReturnValue:
"""The actual view function behavior. Subclasses must override
this and return a valid response. Any variables from the URL
rule are passed as keyword arguments.
"""
raise NotImplementedError()
@classmethod
def as_view(
cls, name: str, *class_args: t.Any, **class_kwargs: t.Any
) -> ft.RouteCallable:
"""Convert the class into a view function that can be registered
for a route.
By default, the generated view will create a new instance of the
view class for every request and call its
:meth:`dispatch_request` method. If the view class sets
:attr:`init_every_request` to ``False``, the same instance will
be used for every request.
Except for ``name``, all other arguments passed to this method
are forwarded to the view class ``__init__`` method.
.. versionchanged:: 2.2
Added the ``init_every_request`` class attribute.
"""
if cls.init_every_request:
def view(**kwargs: t.Any) -> ft.ResponseReturnValue:
self = view.view_class( # type: ignore[attr-defined]
*class_args, **class_kwargs
)
return current_app.ensure_sync(self.dispatch_request)(**kwargs) # type: ignore[no-any-return]
else:
self = cls(*class_args, **class_kwargs)
def view(**kwargs: t.Any) -> ft.ResponseReturnValue:
return current_app.ensure_sync(self.dispatch_request)(**kwargs) # type: ignore[no-any-return]
if cls.decorators:
view.__name__ = name
view.__module__ = cls.__module__
for decorator in cls.decorators:
view = decorator(view)
# We attach the view class to the view function for two reasons:
# first of all it allows us to easily figure out what class-based
# view this thing came from, secondly it's also used for instantiating
# the view class so you can actually replace it with something else
# for testing purposes and debugging.
view.view_class = cls # type: ignore
view.__name__ = name
view.__doc__ = cls.__doc__
view.__module__ = cls.__module__
view.methods = cls.methods # type: ignore
view.provide_automatic_options = cls.provide_automatic_options # type: ignore
return view
class MethodView(View):
"""Dispatches request methods to the corresponding instance methods.
For example, if you implement a ``get`` method, it will be used to
handle ``GET`` requests.
This can be useful for defining a REST API.
:attr:`methods` is automatically set based on the methods defined on
the class.
See :doc:`views` for a detailed guide.
.. code-block:: python
class CounterAPI(MethodView):
def get(self):
return str(session.get("counter", 0))
def post(self):
session["counter"] = session.get("counter", 0) + 1
return redirect(url_for("counter"))
app.add_url_rule(
"/counter", view_func=CounterAPI.as_view("counter")
)
"""
def __init_subclass__(cls, **kwargs: t.Any) -> None:
super().__init_subclass__(**kwargs)
if "methods" not in cls.__dict__:
methods = set()
for base in cls.__bases__:
if getattr(base, "methods", None):
methods.update(base.methods) # type: ignore[attr-defined]
for key in http_method_funcs:
if hasattr(cls, key):
methods.add(key.upper())
if methods:
cls.methods = methods
def dispatch_request(self, **kwargs: t.Any) -> ft.ResponseReturnValue:
meth = getattr(self, request.method.lower(), None)
# If the request method is HEAD and we don't have a handler for it
# retry with GET.
if meth is None and request.method == "HEAD":
meth = getattr(self, "get", None)
assert meth is not None, f"Unimplemented method {request.method!r}"
return current_app.ensure_sync(meth)(**kwargs) # type: ignore[no-any-return]
flask_ml_api/flask_venv/lib/python3.8/site-packages/flask/wrappers.py deleted 100755 → 0
View file @ 81a9e9f3
from __future__ import annotations
import typing as t
from werkzeug.exceptions import BadRequest
from werkzeug.exceptions import HTTPException
from werkzeug.wrappers import Request as RequestBase
from werkzeug.wrappers import Response as ResponseBase
from . import json
from .globals import current_app
from .helpers import _split_blueprint_path
if t.TYPE_CHECKING: # pragma: no cover
from werkzeug.routing import Rule
class Request(RequestBase):
"""The request object used by default in Flask. Remembers the
matched endpoint and view arguments.
It is what ends up as :class:`~flask.request`. If you want to replace
the request object used you can subclass this and set
:attr:`~flask.Flask.request_class` to your subclass.
The request object is a :class:`~werkzeug.wrappers.Request` subclass and
provides all of the attributes Werkzeug defines plus a few Flask
specific ones.
"""
json_module: t.Any = json
#: The internal URL rule that matched the request. This can be
#: useful to inspect which methods are allowed for the URL from
#: a before/after handler (``request.url_rule.methods``) etc.
#: Though if the request's method was invalid for the URL rule,
#: the valid list is available in ``routing_exception.valid_methods``
#: instead (an attribute of the Werkzeug exception
#: :exc:`~werkzeug.exceptions.MethodNotAllowed`)
#: because the request was never internally bound.
#:
#: .. versionadded:: 0.6
url_rule: Rule | None = None
#: A dict of view arguments that matched the request. If an exception
#: happened when matching, this will be ``None``.
view_args: dict[str, t.Any] | None = None
#: If matching the URL failed, this is the exception that will be
#: raised / was raised as part of the request handling. This is
#: usually a :exc:`~werkzeug.exceptions.NotFound` exception or
#: something similar.
routing_exception: HTTPException | None = None
@property
def max_content_length(self) -> int | None: # type: ignore[override]
"""Read-only view of the ``MAX_CONTENT_LENGTH`` config key."""
if current_app:
return current_app.config["MAX_CONTENT_LENGTH"] # type: ignore[no-any-return]
else:
return None
@property
def endpoint(self) -> str | None:
"""The endpoint that matched the request URL.
This will be ``None`` if matching failed or has not been
performed yet.
This in combination with :attr:`view_args` can be used to
reconstruct the same URL or a modified URL.
"""
if self.url_rule is not None:
return self.url_rule.endpoint
return None
@property
def blueprint(self) -> str | None:
"""The registered name of the current blueprint.
This will be ``None`` if the endpoint is not part of a
blueprint, or if URL matching failed or has not been performed
yet.
This does not necessarily match the name the blueprint was
created with. It may have been nested, or registered with a
different name.
"""
endpoint = self.endpoint
if endpoint is not None and "." in endpoint:
return endpoint.rpartition(".")[0]
return None
@property
def blueprints(self) -> list[str]:
"""The registered names of the current blueprint upwards through
parent blueprints.
This will be an empty list if there is no current blueprint, or
if URL matching failed.
.. versionadded:: 2.0.1
"""
name = self.blueprint
if name is None:
return []
return _split_blueprint_path(name)
def _load_form_data(self) -> None:
super()._load_form_data()
# In debug mode we're replacing the files multidict with an ad-hoc
# subclass that raises a different error for key errors.
if (
current_app
and current_app.debug
and self.mimetype != "multipart/form-data"
and not self.files
):
from .debughelpers import attach_enctype_error_multidict
attach_enctype_error_multidict(self)
def on_json_loading_failed(self, e: ValueError | None) -> t.Any:
try:
return super().on_json_loading_failed(e)
except BadRequest as e:
if current_app and current_app.debug:
raise
raise BadRequest() from e
class Response(ResponseBase):
"""The response object that is used by default in Flask. Works like the
response object from Werkzeug but is set to have an HTML mimetype by
default. Quite often you don't have to create this object yourself because
:meth:`~flask.Flask.make_response` will take care of that for you.
If you want to replace the response object used you can subclass this and
set :attr:`~flask.Flask.response_class` to your subclass.
.. versionchanged:: 1.0
JSON support is added to the response, like the request. This is useful
when testing to get the test client response data as JSON.
.. versionchanged:: 1.0
Added :attr:`max_cookie_size`.
"""
default_mimetype: str | None = "text/html"
json_module = json
autocorrect_location_header = False
@property
def max_cookie_size(self) -> int: # type: ignore
"""Read-only view of the :data:`MAX_COOKIE_SIZE` config key.
See :attr:`~werkzeug.wrappers.Response.max_cookie_size` in
Werkzeug's docs.
"""
if current_app:
return current_app.config["MAX_COOKIE_SIZE"] # type: ignore[no-any-return]
# return Werkzeug's default when not in an app context
return super().max_cookie_size
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata-8.5.0.dist-info/LICENSE deleted 100755 → 0
View file @ 81a9e9f3
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata-8.5.0.dist-info/METADATA deleted 100755 → 0
View file @ 81a9e9f3
Metadata-Version: 2.1
Name: importlib_metadata
Version: 8.5.0
Summary: Read metadata from Python packages
Author-email: "Jason R. Coombs" <jaraco@jaraco.com>
Project-URL: Source, https://github.com/python/importlib_metadata
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3 :: Only
Requires-Python: >=3.8
Description-Content-Type: text/x-rst
License-File: LICENSE
Requires-Dist: zipp >=3.20
Requires-Dist: typing-extensions >=3.6.4 ; python_version < "3.8"
Provides-Extra: check
Requires-Dist: pytest-checkdocs >=2.4 ; extra == 'check'
Requires-Dist: pytest-ruff >=0.2.1 ; (sys_platform != "cygwin") and extra == 'check'
Provides-Extra: cover
Requires-Dist: pytest-cov ; extra == 'cover'
Provides-Extra: doc
Requires-Dist: sphinx >=3.5 ; extra == 'doc'
Requires-Dist: jaraco.packaging >=9.3 ; extra == 'doc'
Requires-Dist: rst.linker >=1.9 ; extra == 'doc'
Requires-Dist: furo ; extra == 'doc'
Requires-Dist: sphinx-lint ; extra == 'doc'
Requires-Dist: jaraco.tidelift >=1.4 ; extra == 'doc'
Provides-Extra: enabler
Requires-Dist: pytest-enabler >=2.2 ; extra == 'enabler'
Provides-Extra: perf
Requires-Dist: ipython ; extra == 'perf'
Provides-Extra: test
Requires-Dist: pytest !=8.1.*,>=6 ; extra == 'test'
Requires-Dist: packaging ; extra == 'test'
Requires-Dist: pyfakefs ; extra == 'test'
Requires-Dist: flufl.flake8 ; extra == 'test'
Requires-Dist: pytest-perf >=0.9.2 ; extra == 'test'
Requires-Dist: jaraco.test >=5.4 ; extra == 'test'
Requires-Dist: importlib-resources >=1.3 ; (python_version < "3.9") and extra == 'test'
Provides-Extra: type
Requires-Dist: pytest-mypy ; extra == 'type'
.. image:: https://img.shields.io/pypi/v/importlib_metadata.svg
:target: https://pypi.org/project/importlib_metadata
.. image:: https://img.shields.io/pypi/pyversions/importlib_metadata.svg
.. image:: https://github.com/python/importlib_metadata/actions/workflows/main.yml/badge.svg
:target: https://github.com/python/importlib_metadata/actions?query=workflow%3A%22tests%22
:alt: tests
.. image:: https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json
:target: https://github.com/astral-sh/ruff
:alt: Ruff
.. image:: https://readthedocs.org/projects/importlib-metadata/badge/?version=latest
:target: https://importlib-metadata.readthedocs.io/en/latest/?badge=latest
.. image:: https://img.shields.io/badge/skeleton-2024-informational
:target: https://blog.jaraco.com/skeleton
.. image:: https://tidelift.com/badges/package/pypi/importlib-metadata
:target: https://tidelift.com/subscription/pkg/pypi-importlib-metadata?utm_source=pypi-importlib-metadata&utm_medium=readme
Library to access the metadata for a Python package.
This package supplies third-party access to the functionality of
`importlib.metadata <https://docs.python.org/3/library/importlib.metadata.html>`_
including improvements added to subsequent Python versions.
Compatibility
=============
New features are introduced in this third-party library and later merged
into CPython. The following table indicates which versions of this library
were contributed to different versions in the standard library:
.. list-table::
:header-rows: 1
* - importlib_metadata
- stdlib
* - 7.0
- 3.13
* - 6.5
- 3.12
* - 4.13
- 3.11
* - 4.6
- 3.10
* - 1.4
- 3.8
Usage
=====
See the `online documentation <https://importlib-metadata.readthedocs.io/>`_
for usage details.
`Finder authors
<https://docs.python.org/3/reference/import.html#finders-and-loaders>`_ can
also add support for custom package installers. See the above documentation
for details.
Caveats
=======
This project primarily supports third-party packages installed by PyPA
tools (or other conforming packages). It does not support:
- Packages in the stdlib.
- Packages installed without metadata.
Project details
===============
* Project home: https://github.com/python/importlib_metadata
* Report bugs at: https://github.com/python/importlib_metadata/issues
* Code hosting: https://github.com/python/importlib_metadata
* Documentation: https://importlib-metadata.readthedocs.io/
For Enterprise
==============
Available as part of the Tidelift Subscription.
This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.
`Learn more <https://tidelift.com/subscription/pkg/pypi-importlib-metadata?utm_source=pypi-importlib-metadata&utm_medium=referral&utm_campaign=github>`_.
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata-8.5.0.dist-info/RECORD deleted 100755 → 0
View file @ 81a9e9f3
importlib_metadata-8.5.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
importlib_metadata-8.5.0.dist-info/LICENSE,sha256=z8d0m5b2O9McPEK1xHG_dWgUBT6EfBDz6wA0F7xSPTA,11358
importlib_metadata-8.5.0.dist-info/METADATA,sha256=HXikDpZut4rY2D4ZuhAxXnLUDb-f_XP_Cyp9iYmF4G0,4775
importlib_metadata-8.5.0.dist-info/RECORD,,
importlib_metadata-8.5.0.dist-info/WHEEL,sha256=cVxcB9AmuTcXqmwrtPhNK88dr7IR_b6qagTj0UvIEbY,91
importlib_metadata-8.5.0.dist-info/top_level.txt,sha256=CO3fD9yylANiXkrMo4qHLV_mqXL2sC5JFKgt1yWAT-A,19
importlib_metadata/__init__.py,sha256=-Sk7aVqfmzLecdjSOpLKo1P_PegQanR__HsMMyEq0PI,35853
importlib_metadata/__pycache__/__init__.cpython-38.pyc,,
importlib_metadata/__pycache__/_adapters.cpython-38.pyc,,
importlib_metadata/__pycache__/_collections.cpython-38.pyc,,
importlib_metadata/__pycache__/_compat.cpython-38.pyc,,
importlib_metadata/__pycache__/_functools.cpython-38.pyc,,
importlib_metadata/__pycache__/_itertools.cpython-38.pyc,,
importlib_metadata/__pycache__/_meta.cpython-38.pyc,,
importlib_metadata/__pycache__/_text.cpython-38.pyc,,
importlib_metadata/__pycache__/diagnose.cpython-38.pyc,,
importlib_metadata/_adapters.py,sha256=wdyNWoVblu1r4z8v4t6iQEyjnqAujEyqWAp9wTCVluI,2317
importlib_metadata/_collections.py,sha256=CJ0OTCHIjWA0ZIVS4voORAsn2R4R2cQBEtPsZEJpASY,743
importlib_metadata/_compat.py,sha256=VC5ZDLlT-BcshauCShdFJvMNLntJJfZzNK1meGa-enw,1313
importlib_metadata/_functools.py,sha256=bSbAqC9-2niWM9364FYBx9GWtetnJEfo4mdLv8uMl7c,2895
importlib_metadata/_itertools.py,sha256=nMvp9SfHAQ_JYwK4L2i64lr3GRXGlYlikGTVzWbys_E,5351
importlib_metadata/_meta.py,sha256=JzuqMG4za5MoaBPCPv61c26fUBdQPZ4by3pbaQA_E_o,1823
importlib_metadata/_text.py,sha256=HCsFksZpJLeTP3NEk_ngrAeXVRRtTrtyh9eOABoRP4A,2166
importlib_metadata/compat/__init__.py,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
importlib_metadata/compat/__pycache__/__init__.cpython-38.pyc,,
importlib_metadata/compat/__pycache__/py311.cpython-38.pyc,,
importlib_metadata/compat/__pycache__/py39.cpython-38.pyc,,
importlib_metadata/compat/py311.py,sha256=uqm-K-uohyj1042TH4a9Er_I5o7667DvulcD-gC_fSA,608
importlib_metadata/compat/py39.py,sha256=cPkMv6-0ilK-0Jw_Tkn0xYbOKJZc4WJKQHow0c2T44w,1102
importlib_metadata/diagnose.py,sha256=nkSRMiowlmkhLYhKhvCg9glmt_11Cox-EmLzEbqYTa8,379
importlib_metadata/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata-8.5.0.dist-info/WHEEL deleted 100755 → 0
View file @ 81a9e9f3
Wheel-Version: 1.0
Generator: setuptools (74.1.2)
Root-Is-Purelib: true
Tag: py3-none-any
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata/__init__.py deleted 100755 → 0
View file @ 81a9e9f3
"""
APIs exposing metadata from third-party Python packages.
This codebase is shared between importlib.metadata in the stdlib
and importlib_metadata in PyPI. See
https://github.com/python/importlib_metadata/wiki/Development-Methodology
for more detail.
"""
from __future__ import annotations
import abc
import collections
import email
import functools
import itertools
import operator
import os
import pathlib
import posixpath
import re
import sys
import textwrap
import types
from contextlib import suppress
from importlib import import_module
from importlib.abc import MetaPathFinder
from itertools import starmap
from typing import Any, Iterable, List, Mapping, Match, Optional, Set, cast
from . import _meta
from ._collections import FreezableDefaultDict, Pair
from ._compat import (
NullFinder,
install,
)
from ._functools import method_cache, pass_none
from ._itertools import always_iterable, bucket, unique_everseen
from ._meta import PackageMetadata, SimplePath
from .compat import py39, py311
__all__ = [
'Distribution',
'DistributionFinder',
'PackageMetadata',
'PackageNotFoundError',
'SimplePath',
'distribution',
'distributions',
'entry_points',
'files',
'metadata',
'packages_distributions',
'requires',
'version',
]
class PackageNotFoundError(ModuleNotFoundError):
"""The package was not found."""
def __str__(self) -> str:
return f"No package metadata was found for {self.name}"
@property
def name(self) -> str: # type: ignore[override] # make readonly
(name,) = self.args
return name
class Sectioned:
"""
A simple entry point config parser for performance
>>> for item in Sectioned.read(Sectioned._sample):
... print(item)
Pair(name='sec1', value='# comments ignored')
Pair(name='sec1', value='a = 1')
Pair(name='sec1', value='b = 2')
Pair(name='sec2', value='a = 2')
>>> res = Sectioned.section_pairs(Sectioned._sample)
>>> item = next(res)
>>> item.name
'sec1'
>>> item.value
Pair(name='a', value='1')
>>> item = next(res)
>>> item.value
Pair(name='b', value='2')
>>> item = next(res)
>>> item.name
'sec2'
>>> item.value
Pair(name='a', value='2')
>>> list(res)
[]
"""
_sample = textwrap.dedent(
"""
[sec1]
# comments ignored
a = 1
b = 2
[sec2]
a = 2
"""
).lstrip()
@classmethod
def section_pairs(cls, text):
return (
section._replace(value=Pair.parse(section.value))
for section in cls.read(text, filter_=cls.valid)
if section.name is not None
)
@staticmethod
def read(text, filter_=None):
lines = filter(filter_, map(str.strip, text.splitlines()))
name = None
for value in lines:
section_match = value.startswith('[') and value.endswith(']')
if section_match:
name = value.strip('[]')
continue
yield Pair(name, value)
@staticmethod
def valid(line: str):
return line and not line.startswith('#')
class EntryPoint:
"""An entry point as defined by Python packaging conventions.
See `the packaging docs on entry points
<https://packaging.python.org/specifications/entry-points/>`_
for more information.
>>> ep = EntryPoint(
... name=None, group=None, value='package.module:attr [extra1, extra2]')
>>> ep.module
'package.module'
>>> ep.attr
'attr'
>>> ep.extras
['extra1', 'extra2']
"""
pattern = re.compile(
r'(?P<module>[\w.]+)\s*'
r'(:\s*(?P<attr>[\w.]+)\s*)?'
r'((?P<extras>\[.*\])\s*)?$'
)
"""
A regular expression describing the syntax for an entry point,
which might look like:
- module
- package.module
- package.module:attribute
- package.module:object.attribute
- package.module:attr [extra1, extra2]
Other combinations are possible as well.
The expression is lenient about whitespace around the ':',
following the attr, and following any extras.
"""
name: str
value: str
group: str
dist: Optional[Distribution] = None
def __init__(self, name: str, value: str, group: str) -> None:
vars(self).update(name=name, value=value, group=group)
def load(self) -> Any:
"""Load the entry point from its definition. If only a module
is indicated by the value, return that module. Otherwise,
return the named object.
"""
match = cast(Match, self.pattern.match(self.value))
module = import_module(match.group('module'))
attrs = filter(None, (match.group('attr') or '').split('.'))
return functools.reduce(getattr, attrs, module)
@property
def module(self) -> str:
match = self.pattern.match(self.value)
assert match is not None
return match.group('module')
@property
def attr(self) -> str:
match = self.pattern.match(self.value)
assert match is not None
return match.group('attr')
@property
def extras(self) -> List[str]:
match = self.pattern.match(self.value)
assert match is not None
return re.findall(r'\w+', match.group('extras') or '')
def _for(self, dist):
vars(self).update(dist=dist)
return self
def matches(self, **params):
"""
EntryPoint matches the given parameters.
>>> ep = EntryPoint(group='foo', name='bar', value='bing:bong [extra1, extra2]')
>>> ep.matches(group='foo')
True
>>> ep.matches(name='bar', value='bing:bong [extra1, extra2]')
True
>>> ep.matches(group='foo', name='other')
False
>>> ep.matches()
True
>>> ep.matches(extras=['extra1', 'extra2'])
True
>>> ep.matches(module='bing')
True
>>> ep.matches(attr='bong')
True
"""
self._disallow_dist(params)
attrs = (getattr(self, param) for param in params)
return all(map(operator.eq, params.values(), attrs))
@staticmethod
def _disallow_dist(params):
"""
Querying by dist is not allowed (dist objects are not comparable).
>>> EntryPoint(name='fan', value='fav', group='fag').matches(dist='foo')
Traceback (most recent call last):
...
ValueError: "dist" is not suitable for matching...
"""
if "dist" in params:
raise ValueError(
'"dist" is not suitable for matching. '
"Instead, use Distribution.entry_points.select() on a "
"located distribution."
)
def _key(self):
return self.name, self.value, self.group
def __lt__(self, other):
return self._key() < other._key()
def __eq__(self, other):
return self._key() == other._key()
def __setattr__(self, name, value):
raise AttributeError("EntryPoint objects are immutable.")
def __repr__(self):
return (
f'EntryPoint(name={self.name!r}, value={self.value!r}, '
f'group={self.group!r})'
)
def __hash__(self) -> int:
return hash(self._key())
class EntryPoints(tuple):
"""
An immutable collection of selectable EntryPoint objects.
"""
__slots__ = ()
def __getitem__(self, name: str) -> EntryPoint: # type: ignore[override] # Work with str instead of int
"""
Get the EntryPoint in self matching name.
"""
try:
return next(iter(self.select(name=name)))
except StopIteration:
raise KeyError(name)
def __repr__(self):
"""
Repr with classname and tuple constructor to
signal that we deviate from regular tuple behavior.
"""
return '%s(%r)' % (self.__class__.__name__, tuple(self))
def select(self, **params) -> EntryPoints:
"""
Select entry points from self that match the
given parameters (typically group and/or name).
"""
return EntryPoints(ep for ep in self if py39.ep_matches(ep, **params))
@property
def names(self) -> Set[str]:
"""
Return the set of all names of all entry points.
"""
return {ep.name for ep in self}
@property
def groups(self) -> Set[str]:
"""
Return the set of all groups of all entry points.
"""
return {ep.group for ep in self}
@classmethod
def _from_text_for(cls, text, dist):
return cls(ep._for(dist) for ep in cls._from_text(text))
@staticmethod
def _from_text(text):
return (
EntryPoint(name=item.value.name, value=item.value.value, group=item.name)
for item in Sectioned.section_pairs(text or '')
)
class PackagePath(pathlib.PurePosixPath):
"""A reference to a path in a package"""
hash: Optional[FileHash]
size: int
dist: Distribution
def read_text(self, encoding: str = 'utf-8') -> str:
return self.locate().read_text(encoding=encoding)
def read_binary(self) -> bytes:
return self.locate().read_bytes()
def locate(self) -> SimplePath:
"""Return a path-like object for this path"""
return self.dist.locate_file(self)
class FileHash:
def __init__(self, spec: str) -> None:
self.mode, _, self.value = spec.partition('=')
def __repr__(self) -> str:
return f'<FileHash mode: {self.mode} value: {self.value}>'
class Distribution(metaclass=abc.ABCMeta):
"""
An abstract Python distribution package.
Custom providers may derive from this class and define
the abstract methods to provide a concrete implementation
for their environment. Some providers may opt to override
the default implementation of some properties to bypass
the file-reading mechanism.
"""
@abc.abstractmethod
def read_text(self, filename) -> Optional[str]:
"""Attempt to load metadata file given by the name.
Python distribution metadata is organized by blobs of text
typically represented as "files" in the metadata directory
(e.g. package-1.0.dist-info). These files include things
like:
- METADATA: The distribution metadata including fields
like Name and Version and Description.
- entry_points.txt: A series of entry points as defined in
`the entry points spec <https://packaging.python.org/en/latest/specifications/entry-points/#file-format>`_.
- RECORD: A record of files according to
`this recording spec <https://packaging.python.org/en/latest/specifications/recording-installed-packages/#the-record-file>`_.
A package may provide any set of files, including those
not listed here or none at all.
:param filename: The name of the file in the distribution info.
:return: The text if found, otherwise None.
"""
@abc.abstractmethod
def locate_file(self, path: str | os.PathLike[str]) -> SimplePath:
"""
Given a path to a file in this distribution, return a SimplePath
to it.
This method is used by callers of ``Distribution.files()`` to
locate files within the distribution. If it's possible for a
Distribution to represent files in the distribution as
``SimplePath`` objects, it should implement this method
to resolve such objects.
Some Distribution providers may elect not to resolve SimplePath
objects within the distribution by raising a
NotImplementedError, but consumers of such a Distribution would
be unable to invoke ``Distribution.files()``.
"""
@classmethod
def from_name(cls, name: str) -> Distribution:
"""Return the Distribution for the given package name.
:param name: The name of the distribution package to search for.
:return: The Distribution instance (or subclass thereof) for the named
package, if found.
:raises PackageNotFoundError: When the named package's distribution
metadata cannot be found.
:raises ValueError: When an invalid value is supplied for name.
"""
if not name:
raise ValueError("A distribution name is required.")
try:
return next(iter(cls._prefer_valid(cls.discover(name=name))))
except StopIteration:
raise PackageNotFoundError(name)
@classmethod
def discover(
cls, *, context: Optional[DistributionFinder.Context] = None, **kwargs
) -> Iterable[Distribution]:
"""Return an iterable of Distribution objects for all packages.
Pass a ``context`` or pass keyword arguments for constructing
a context.
:context: A ``DistributionFinder.Context`` object.
:return: Iterable of Distribution objects for packages matching
the context.
"""
if context and kwargs:
raise ValueError("cannot accept context and kwargs")
context = context or DistributionFinder.Context(**kwargs)
return itertools.chain.from_iterable(
resolver(context) for resolver in cls._discover_resolvers()
)
@staticmethod
def _prefer_valid(dists: Iterable[Distribution]) -> Iterable[Distribution]:
"""
Prefer (move to the front) distributions that have metadata.
Ref python/importlib_resources#489.
"""
buckets = bucket(dists, lambda dist: bool(dist.metadata))
return itertools.chain(buckets[True], buckets[False])
@staticmethod
def at(path: str | os.PathLike[str]) -> Distribution:
"""Return a Distribution for the indicated metadata path.
:param path: a string or path-like object
:return: a concrete Distribution instance for the path
"""
return PathDistribution(pathlib.Path(path))
@staticmethod
def _discover_resolvers():
"""Search the meta_path for resolvers (MetadataPathFinders)."""
declared = (
getattr(finder, 'find_distributions', None) for finder in sys.meta_path
)
return filter(None, declared)
@property
def metadata(self) -> _meta.PackageMetadata:
"""Return the parsed metadata for this Distribution.
The returned object will have keys that name the various bits of
metadata per the
`Core metadata specifications <https://packaging.python.org/en/latest/specifications/core-metadata/#core-metadata>`_.
Custom providers may provide the METADATA file or override this
property.
"""
# deferred for performance (python/cpython#109829)
from . import _adapters
opt_text = (
self.read_text('METADATA')
or self.read_text('PKG-INFO')
# This last clause is here to support old egg-info files. Its
# effect is to just end up using the PathDistribution's self._path
# (which points to the egg-info file) attribute unchanged.
or self.read_text('')
)
text = cast(str, opt_text)
return _adapters.Message(email.message_from_string(text))
@property
def name(self) -> str:
"""Return the 'Name' metadata for the distribution package."""
return self.metadata['Name']
@property
def _normalized_name(self):
"""Return a normalized version of the name."""
return Prepared.normalize(self.name)
@property
def version(self) -> str:
"""Return the 'Version' metadata for the distribution package."""
return self.metadata['Version']
@property
def entry_points(self) -> EntryPoints:
"""
Return EntryPoints for this distribution.
Custom providers may provide the ``entry_points.txt`` file
or override this property.
"""
return EntryPoints._from_text_for(self.read_text('entry_points.txt'), self)
@property
def files(self) -> Optional[List[PackagePath]]:
"""Files in this distribution.
:return: List of PackagePath for this distribution or None
Result is `None` if the metadata file that enumerates files
(i.e. RECORD for dist-info, or installed-files.txt or
SOURCES.txt for egg-info) is missing.
Result may be empty if the metadata exists but is empty.
Custom providers are recommended to provide a "RECORD" file (in
``read_text``) or override this property to allow for callers to be
able to resolve filenames provided by the package.
"""
def make_file(name, hash=None, size_str=None):
result = PackagePath(name)
result.hash = FileHash(hash) if hash else None
result.size = int(size_str) if size_str else None
result.dist = self
return result
@pass_none
def make_files(lines):
# Delay csv import, since Distribution.files is not as widely used
# as other parts of importlib.metadata
import csv
return starmap(make_file, csv.reader(lines))
@pass_none
def skip_missing_files(package_paths):
return list(filter(lambda path: path.locate().exists(), package_paths))
return skip_missing_files(
make_files(
self._read_files_distinfo()
or self._read_files_egginfo_installed()
or self._read_files_egginfo_sources()
)
)
def _read_files_distinfo(self):
"""
Read the lines of RECORD.
"""
text = self.read_text('RECORD')
return text and text.splitlines()
def _read_files_egginfo_installed(self):
"""
Read installed-files.txt and return lines in a similar
CSV-parsable format as RECORD: each file must be placed
relative to the site-packages directory and must also be
quoted (since file names can contain literal commas).
This file is written when the package is installed by pip,
but it might not be written for other installation methods.
Assume the file is accurate if it exists.
"""
text = self.read_text('installed-files.txt')
# Prepend the .egg-info/ subdir to the lines in this file.
# But this subdir is only available from PathDistribution's
# self._path.
subdir = getattr(self, '_path', None)
if not text or not subdir:
return
paths = (
py311.relative_fix((subdir / name).resolve())
.relative_to(self.locate_file('').resolve(), walk_up=True)
.as_posix()
for name in text.splitlines()
)
return map('"{}"'.format, paths)
def _read_files_egginfo_sources(self):
"""
Read SOURCES.txt and return lines in a similar CSV-parsable
format as RECORD: each file name must be quoted (since it
might contain literal commas).
Note that SOURCES.txt is not a reliable source for what
files are installed by a package. This file is generated
for a source archive, and the files that are present
there (e.g. setup.py) may not correctly reflect the files
that are present after the package has been installed.
"""
text = self.read_text('SOURCES.txt')
return text and map('"{}"'.format, text.splitlines())
@property
def requires(self) -> Optional[List[str]]:
"""Generated requirements specified for this Distribution"""
reqs = self._read_dist_info_reqs() or self._read_egg_info_reqs()
return reqs and list(reqs)
def _read_dist_info_reqs(self):
return self.metadata.get_all('Requires-Dist')
def _read_egg_info_reqs(self):
source = self.read_text('requires.txt')
return pass_none(self._deps_from_requires_text)(source)
@classmethod
def _deps_from_requires_text(cls, source):
return cls._convert_egg_info_reqs_to_simple_reqs(Sectioned.read(source))
@staticmethod
def _convert_egg_info_reqs_to_simple_reqs(sections):
"""
Historically, setuptools would solicit and store 'extra'
requirements, including those with environment markers,
in separate sections. More modern tools expect each
dependency to be defined separately, with any relevant
extras and environment markers attached directly to that
requirement. This method converts the former to the
latter. See _test_deps_from_requires_text for an example.
"""
def make_condition(name):
return name and f'extra == "{name}"'
def quoted_marker(section):
section = section or ''
extra, sep, markers = section.partition(':')
if extra and markers:
markers = f'({markers})'
conditions = list(filter(None, [markers, make_condition(extra)]))
return '; ' + ' and '.join(conditions) if conditions else ''
def url_req_space(req):
"""
PEP 508 requires a space between the url_spec and the quoted_marker.
Ref python/importlib_metadata#357.
"""
# '@' is uniquely indicative of a url_req.
return ' ' * ('@' in req)
for section in sections:
space = url_req_space(section.value)
yield section.value + space + quoted_marker(section.name)
@property
def origin(self):
return self._load_json('direct_url.json')
def _load_json(self, filename):
# Deferred for performance (python/importlib_metadata#503)
import json
return pass_none(json.loads)(
self.read_text(filename),
object_hook=lambda data: types.SimpleNamespace(**data),
)
class DistributionFinder(MetaPathFinder):
"""
A MetaPathFinder capable of discovering installed distributions.
Custom providers should implement this interface in order to
supply metadata.
"""
class Context:
"""
Keyword arguments presented by the caller to
``distributions()`` or ``Distribution.discover()``
to narrow the scope of a search for distributions
in all DistributionFinders.
Each DistributionFinder may expect any parameters
and should attempt to honor the canonical
parameters defined below when appropriate.
This mechanism gives a custom provider a means to
solicit additional details from the caller beyond
"name" and "path" when searching distributions.
For example, imagine a provider that exposes suites
of packages in either a "public" or "private" ``realm``.
A caller may wish to query only for distributions in
a particular realm and could call
``distributions(realm="private")`` to signal to the
custom provider to only include distributions from that
realm.
"""
name = None
"""
Specific name for which a distribution finder should match.
A name of ``None`` matches all distributions.
"""
def __init__(self, **kwargs):
vars(self).update(kwargs)
@property
def path(self) -> List[str]:
"""
The sequence of directory path that a distribution finder
should search.
Typically refers to Python installed package paths such as
"site-packages" directories and defaults to ``sys.path``.
"""
return vars(self).get('path', sys.path)
@abc.abstractmethod
def find_distributions(self, context=Context()) -> Iterable[Distribution]:
"""
Find distributions.
Return an iterable of all Distribution instances capable of
loading the metadata for packages matching the ``context``,
a DistributionFinder.Context instance.
"""
class FastPath:
"""
Micro-optimized class for searching a root for children.
Root is a path on the file system that may contain metadata
directories either as natural directories or within a zip file.
>>> FastPath('').children()
['...']
FastPath objects are cached and recycled for any given root.
>>> FastPath('foobar') is FastPath('foobar')
True
"""
@functools.lru_cache() # type: ignore[misc]
def __new__(cls, root):
return super().__new__(cls)
def __init__(self, root):
self.root = root
def joinpath(self, child):
return pathlib.Path(self.root, child)
def children(self):
with suppress(Exception):
return os.listdir(self.root or '.')
with suppress(Exception):
return self.zip_children()
return []
def zip_children(self):
# deferred for performance (python/importlib_metadata#502)
from zipp.compat.overlay import zipfile
zip_path = zipfile.Path(self.root)
names = zip_path.root.namelist()
self.joinpath = zip_path.joinpath
return dict.fromkeys(child.split(posixpath.sep, 1)[0] for child in names)
def search(self, name):
return self.lookup(self.mtime).search(name)
@property
def mtime(self):
with suppress(OSError):
return os.stat(self.root).st_mtime
self.lookup.cache_clear()
@method_cache
def lookup(self, mtime):
return Lookup(self)
class Lookup:
"""
A micro-optimized class for searching a (fast) path for metadata.
"""
def __init__(self, path: FastPath):
"""
Calculate all of the children representing metadata.
From the children in the path, calculate early all of the
children that appear to represent metadata (infos) or legacy
metadata (eggs).
"""
base = os.path.basename(path.root).lower()
base_is_egg = base.endswith(".egg")
self.infos = FreezableDefaultDict(list)
self.eggs = FreezableDefaultDict(list)
for child in path.children():
low = child.lower()
if low.endswith((".dist-info", ".egg-info")):
# rpartition is faster than splitext and suitable for this purpose.
name = low.rpartition(".")[0].partition("-")[0]
normalized = Prepared.normalize(name)
self.infos[normalized].append(path.joinpath(child))
elif base_is_egg and low == "egg-info":
name = base.rpartition(".")[0].partition("-")[0]
legacy_normalized = Prepared.legacy_normalize(name)
self.eggs[legacy_normalized].append(path.joinpath(child))
self.infos.freeze()
self.eggs.freeze()
def search(self, prepared: Prepared):
"""
Yield all infos and eggs matching the Prepared query.
"""
infos = (
self.infos[prepared.normalized]
if prepared
else itertools.chain.from_iterable(self.infos.values())
)
eggs = (
self.eggs[prepared.legacy_normalized]
if prepared
else itertools.chain.from_iterable(self.eggs.values())
)
return itertools.chain(infos, eggs)
class Prepared:
"""
A prepared search query for metadata on a possibly-named package.
Pre-calculates the normalization to prevent repeated operations.
>>> none = Prepared(None)
>>> none.normalized
>>> none.legacy_normalized
>>> bool(none)
False
>>> sample = Prepared('Sample__Pkg-name.foo')
>>> sample.normalized
'sample_pkg_name_foo'
>>> sample.legacy_normalized
'sample__pkg_name.foo'
>>> bool(sample)
True
"""
normalized = None
legacy_normalized = None
def __init__(self, name: Optional[str]):
self.name = name
if name is None:
return
self.normalized = self.normalize(name)
self.legacy_normalized = self.legacy_normalize(name)
@staticmethod
def normalize(name):
"""
PEP 503 normalization plus dashes as underscores.
"""
return re.sub(r"[-_.]+", "-", name).lower().replace('-', '_')
@staticmethod
def legacy_normalize(name):
"""
Normalize the package name as found in the convention in
older packaging tools versions and specs.
"""
return name.lower().replace('-', '_')
def __bool__(self):
return bool(self.name)
@install
class MetadataPathFinder(NullFinder, DistributionFinder):
"""A degenerate finder for distribution packages on the file system.
This finder supplies only a find_distributions() method for versions
of Python that do not have a PathFinder find_distributions().
"""
@classmethod
def find_distributions(
cls, context=DistributionFinder.Context()
) -> Iterable[PathDistribution]:
"""
Find distributions.
Return an iterable of all Distribution instances capable of
loading the metadata for packages matching ``context.name``
(or all names if ``None`` indicated) along the paths in the list
of directories ``context.path``.
"""
found = cls._search_paths(context.name, context.path)
return map(PathDistribution, found)
@classmethod
def _search_paths(cls, name, paths):
"""Find metadata directories in paths heuristically."""
prepared = Prepared(name)
return itertools.chain.from_iterable(
path.search(prepared) for path in map(FastPath, paths)
)
@classmethod
def invalidate_caches(cls) -> None:
FastPath.__new__.cache_clear()
class PathDistribution(Distribution):
def __init__(self, path: SimplePath) -> None:
"""Construct a distribution.
:param path: SimplePath indicating the metadata directory.
"""
self._path = path
def read_text(self, filename: str | os.PathLike[str]) -> Optional[str]:
with suppress(
FileNotFoundError,
IsADirectoryError,
KeyError,
NotADirectoryError,
PermissionError,
):
return self._path.joinpath(filename).read_text(encoding='utf-8')
return None
read_text.__doc__ = Distribution.read_text.__doc__
def locate_file(self, path: str | os.PathLike[str]) -> SimplePath:
return self._path.parent / path
@property
def _normalized_name(self):
"""
Performance optimization: where possible, resolve the
normalized name from the file system path.
"""
stem = os.path.basename(str(self._path))
return (
pass_none(Prepared.normalize)(self._name_from_stem(stem))
or super()._normalized_name
)
@staticmethod
def _name_from_stem(stem):
"""
>>> PathDistribution._name_from_stem('foo-3.0.egg-info')
'foo'
>>> PathDistribution._name_from_stem('CherryPy-3.0.dist-info')
'CherryPy'
>>> PathDistribution._name_from_stem('face.egg-info')
'face'
>>> PathDistribution._name_from_stem('foo.bar')
"""
filename, ext = os.path.splitext(stem)
if ext not in ('.dist-info', '.egg-info'):
return
name, sep, rest = filename.partition('-')
return name
def distribution(distribution_name: str) -> Distribution:
"""Get the ``Distribution`` instance for the named package.
:param distribution_name: The name of the distribution package as a string.
:return: A ``Distribution`` instance (or subclass thereof).
"""
return Distribution.from_name(distribution_name)
def distributions(**kwargs) -> Iterable[Distribution]:
"""Get all ``Distribution`` instances in the current environment.
:return: An iterable of ``Distribution`` instances.
"""
return Distribution.discover(**kwargs)
def metadata(distribution_name: str) -> _meta.PackageMetadata:
"""Get the metadata for the named package.
:param distribution_name: The name of the distribution package to query.
:return: A PackageMetadata containing the parsed metadata.
"""
return Distribution.from_name(distribution_name).metadata
def version(distribution_name: str) -> str:
"""Get the version string for the named package.
:param distribution_name: The name of the distribution package to query.
:return: The version string for the package as defined in the package's
"Version" metadata key.
"""
return distribution(distribution_name).version
_unique = functools.partial(
unique_everseen,
key=py39.normalized_name,
)
"""
Wrapper for ``distributions`` to return unique distributions by name.
"""
def entry_points(**params) -> EntryPoints:
"""Return EntryPoint objects for all installed packages.
Pass selection parameters (group or name) to filter the
result to entry points matching those properties (see
EntryPoints.select()).
:return: EntryPoints for all installed packages.
"""
eps = itertools.chain.from_iterable(
dist.entry_points for dist in _unique(distributions())
)
return EntryPoints(eps).select(**params)
def files(distribution_name: str) -> Optional[List[PackagePath]]:
"""Return a list of files for the named package.
:param distribution_name: The name of the distribution package to query.
:return: List of files composing the distribution.
"""
return distribution(distribution_name).files
def requires(distribution_name: str) -> Optional[List[str]]:
"""
Return a list of requirements for the named package.
:return: An iterable of requirements, suitable for
packaging.requirement.Requirement.
"""
return distribution(distribution_name).requires
def packages_distributions() -> Mapping[str, List[str]]:
"""
Return a mapping of top-level packages to their
distributions.
>>> import collections.abc
>>> pkgs = packages_distributions()
>>> all(isinstance(dist, collections.abc.Sequence) for dist in pkgs.values())
True
"""
pkg_to_dist = collections.defaultdict(list)
for dist in distributions():
for pkg in _top_level_declared(dist) or _top_level_inferred(dist):
pkg_to_dist[pkg].append(dist.metadata['Name'])
return dict(pkg_to_dist)
def _top_level_declared(dist):
return (dist.read_text('top_level.txt') or '').split()
def _topmost(name: PackagePath) -> Optional[str]:
"""
Return the top-most parent as long as there is a parent.
"""
top, *rest = name.parts
return top if rest else None
def _get_toplevel_name(name: PackagePath) -> str:
"""
Infer a possibly importable module name from a name presumed on
sys.path.
>>> _get_toplevel_name(PackagePath('foo.py'))
'foo'
>>> _get_toplevel_name(PackagePath('foo'))
'foo'
>>> _get_toplevel_name(PackagePath('foo.pyc'))
'foo'
>>> _get_toplevel_name(PackagePath('foo/__init__.py'))
'foo'
>>> _get_toplevel_name(PackagePath('foo.pth'))
'foo.pth'
>>> _get_toplevel_name(PackagePath('foo.dist-info'))
'foo.dist-info'
"""
# Defer import of inspect for performance (python/cpython#118761)
import inspect
return _topmost(name) or inspect.getmodulename(name) or str(name)
def _top_level_inferred(dist):
opt_names = set(map(_get_toplevel_name, always_iterable(dist.files)))
def importable_name(name):
return '.' not in name
return filter(importable_name, opt_names)
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata/_adapters.py deleted 100755 → 0
View file @ 81a9e9f3
import email.message
import re
import textwrap
from ._text import FoldedCase
class Message(email.message.Message):
multiple_use_keys = set(
map(
FoldedCase,
[
'Classifier',
'Obsoletes-Dist',
'Platform',
'Project-URL',
'Provides-Dist',
'Provides-Extra',
'Requires-Dist',
'Requires-External',
'Supported-Platform',
'Dynamic',
],
)
)
"""
Keys that may be indicated multiple times per PEP 566.
"""
def __new__(cls, orig: email.message.Message):
res = super().__new__(cls)
vars(res).update(vars(orig))
return res
def __init__(self, *args, **kwargs):
self._headers = self._repair_headers()
# suppress spurious error from mypy
def __iter__(self):
return super().__iter__()
def __getitem__(self, item):
"""
Override parent behavior to typical dict behavior.
``email.message.Message`` will emit None values for missing
keys. Typical mappings, including this ``Message``, will raise
a key error for missing keys.
Ref python/importlib_metadata#371.
"""
res = super().__getitem__(item)
if res is None:
raise KeyError(item)
return res
def _repair_headers(self):
def redent(value):
"Correct for RFC822 indentation"
if not value or '\n' not in value:
return value
return textwrap.dedent(' ' * 8 + value)
headers = [(key, redent(value)) for key, value in vars(self)['_headers']]
if self._payload:
headers.append(('Description', self.get_payload()))
return headers
@property
def json(self):
"""
Convert PackageMetadata to a JSON-compatible format
per PEP 0566.
"""
def transform(key):
value = self.get_all(key) if key in self.multiple_use_keys else self[key]
if key == 'Keywords':
value = re.split(r'\s+', value)
tk = key.lower().replace('-', '_')
return tk, value
return dict(map(transform, map(FoldedCase, self)))
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata/_collections.py deleted 100755 → 0
View file @ 81a9e9f3
import collections
# from jaraco.collections 3.3
class FreezableDefaultDict(collections.defaultdict):
"""
Often it is desirable to prevent the mutation of
a default dict after its initial construction, such
as to prevent mutation during iteration.
>>> dd = FreezableDefaultDict(list)
>>> dd[0].append('1')
>>> dd.freeze()
>>> dd[1]
[]
>>> len(dd)
1
"""
def __missing__(self, key):
return getattr(self, '_frozen', super().__missing__)(key)
def freeze(self):
self._frozen = lambda key: self.default_factory()
class Pair(collections.namedtuple('Pair', 'name value')):
@classmethod
def parse(cls, text):
return cls(*map(str.strip, text.split("=", 1)))
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata/_compat.py deleted 100755 → 0
View file @ 81a9e9f3
import platform
import sys
__all__ = ['install', 'NullFinder']
def install(cls):
"""
Class decorator for installation on sys.meta_path.
Adds the backport DistributionFinder to sys.meta_path and
attempts to disable the finder functionality of the stdlib
DistributionFinder.
"""
sys.meta_path.append(cls())
disable_stdlib_finder()
return cls
def disable_stdlib_finder():
"""
Give the backport primacy for discovering path-based distributions
by monkey-patching the stdlib O_O.
See #91 for more background for rationale on this sketchy
behavior.
"""
def matches(finder):
return getattr(
finder, '__module__', None
) == '_frozen_importlib_external' and hasattr(finder, 'find_distributions')
for finder in filter(matches, sys.meta_path): # pragma: nocover
del finder.find_distributions
class NullFinder:
"""
A "Finder" (aka "MetaPathFinder") that never finds any modules,
but may find distributions.
"""
@staticmethod
def find_spec(*args, **kwargs):
return None
def pypy_partial(val):
"""
Adjust for variable stacklevel on partial under PyPy.
Workaround for #327.
"""
is_pypy = platform.python_implementation() == 'PyPy'
return val + is_pypy
flask_ml_api/flask_venv/lib/python3.8/site-packages/importlib_metadata/_functools.py deleted 100755 → 0
View file @ 81a9e9f3
import functools
import types
# from jaraco.functools 3.3
def method_cache(method, cache_wrapper=None):
"""
Wrap lru_cache to support storing the cache data in the object instances.
Abstracts the common paradigm where the method explicitly saves an
underscore-prefixed protected property on first call and returns that
subsequently.
>>> class MyClass:
... calls = 0
...
... @method_cache
... def method(self, value):
... self.calls += 1
... return value
>>> a = MyClass()
>>> a.method(3)
3
>>> for x in range(75):
... res = a.method(x)
>>> a.calls
75
Note that the apparent behavior will be exactly like that of lru_cache
except that the cache is stored on each instance, so values in one
instance will not flush values from another, and when an instance is
deleted, so are the cached values for that instance.
>>> b = MyClass()
>>> for x in range(35):
... res = b.method(x)
>>> b.calls
35
>>> a.method(0)
0
>>> a.calls
75
Note that if method had been decorated with ``functools.lru_cache()``,
a.calls would have been 76 (due to the cached value of 0 having been
flushed by the 'b' instance).
Clear the cache with ``.cache_clear()``
>>> a.method.cache_clear()
Same for a method that hasn't yet been called.
>>> c = MyClass()
>>> c.method.cache_clear()
Another cache wrapper may be supplied:
>>> cache = functools.lru_cache(maxsize=2)
>>> MyClass.method2 = method_cache(lambda self: 3, cache_wrapper=cache)
>>> a = MyClass()
>>> a.method2()
3
Caution - do not subsequently wrap the method with another decorator, such
as ``@property``, which changes the semantics of the function.
See also
http://code.activestate.com/recipes/577452-a-memoize-decorator-for-instance-methods/
for another implementation and additional justification.
"""
cache_wrapper = cache_wrapper or functools.lru_cache()
def wrapper(self, *args, **kwargs):
# it's the first call, replace the method with a cached, bound method
bound_method = types.MethodType(method, self)
cached_method = cache_wrapper(bound_method)
setattr(self, method.__name__, cached_method)
return cached_method(*args, **kwargs)
# Support cache clear even before cache has been created.
wrapper.cache_clear = lambda: None
return wrapper
# From jaraco.functools 3.3
def pass_none(func):
"""
Wrap func so it's not called if its first param is None
>>> print_text = pass_none(print)
>>> print_text('text')
text
>>> print_text(None)
"""
@functools.wraps(func)
def wrapper(param, *args, **kwargs):
if param is not None:
return func(param, *args, **kwargs)
return wrapper
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment

Dies ist die Gitlab-Instanz des Transferportals der Hochschule für Technik Stuttgart. Hier geht es zurück zum Portal