remove deprecated code (#5223)

CHANGES.rst

@@ -3,6 +3,8 @@ Version 3.0.0
 
 Unreleased
 
+-   Remove previously deprecated code. :pr:`5223`
+
 
 Version 2.3.3
 -------------

docs/api.rst

@@ -519,11 +519,6 @@ Signals are provided by the `Blinker`_ library. See :doc:`signals` for an introd
 
    .. versionadded:: 0.10
 
-.. data:: signals.signals_available
-
-    .. deprecated:: 2.3
-        Will be removed in Flask 2.4. Signals are always available
-
 
 Class-Based Views
 -----------------

src/flask/__init__.py

@@ -39,64 +39,3 @@ from .templating import stream_template as stream_template
 from .templating import stream_template_string as stream_template_string
 
 __version__ = "3.0.0.dev"
-
-
-def __getattr__(name):
-    if name == "_app_ctx_stack":
-        import warnings
-        from .globals import __app_ctx_stack
-
-        warnings.warn(
-            "'_app_ctx_stack' is deprecated and will be removed in Flask 2.4.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return __app_ctx_stack
-
-    if name == "_request_ctx_stack":
-        import warnings
-        from .globals import __request_ctx_stack
-
-        warnings.warn(
-            "'_request_ctx_stack' is deprecated and will be removed in Flask 2.4.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return __request_ctx_stack
-
-    if name == "escape":
-        import warnings
-        from markupsafe import escape
-
-        warnings.warn(
-            "'flask.escape' is deprecated and will be removed in Flask 2.4. Import"
-            " 'markupsafe.escape' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return escape
-
-    if name == "Markup":
-        import warnings
-        from markupsafe import Markup
-
-        warnings.warn(
-            "'flask.Markup' is deprecated and will be removed in Flask 2.4. Import"
-            " 'markupsafe.Markup' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return Markup
-
-    if name == "signals_available":
-        import warnings
-
-        warnings.warn(
-            "'signals_available' is deprecated and will be removed in Flask 2.4."
-            " Signals are always available",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return True
-
-    raise AttributeError(name)

src/flask/app.py

@@ -572,25 +572,6 @@ class Flask(Scaffold):
         """
         return self.create_jinja_environment()
 
-    @property
-    def got_first_request(self) -> bool:
-        """This attribute is set to ``True`` if the application started
-        handling the first request.
-
-        .. deprecated:: 2.3
-            Will be removed in Flask 2.4.
-
-        .. versionadded:: 0.8
-        """
-        import warnings
-
-        warnings.warn(
-            "'got_first_request' is deprecated and will be removed in Flask 2.4.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return self._got_first_request
-
     def make_config(self, instance_relative: bool = False) -> Config:
         """Used to create the config attribute by the Flask constructor.
         The `instance_relative` parameter is passed in from the constructor

src/flask/globals.py

@@ -14,25 +14,6 @@ if t.TYPE_CHECKING:  # pragma: no cover
     from .wrappers import Request
 
 
-class _FakeStack:
-    def __init__(self, name: str, cv: ContextVar[t.Any]) -> None:
-        self.name = name
-        self.cv = cv
-
-    @property
-    def top(self) -> t.Any | None:
-        import warnings
-
-        warnings.warn(
-            f"'_{self.name}_ctx_stack' is deprecated and will be removed in Flask 2.4."
-            f" Use 'g' to store data, or '{self.name}_ctx' to access the current"
-            " context.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return self.cv.get(None)
-
-
 _no_app_msg = """\
 Working outside of application context.
 
@@ -41,7 +22,6 @@ the current application. To solve this, set up an application context
 with app.app_context(). See the documentation for more information.\
 """
 _cv_app: ContextVar[AppContext] = ContextVar("flask.app_ctx")
-__app_ctx_stack = _FakeStack("app", _cv_app)
 app_ctx: AppContext = LocalProxy(  # type: ignore[assignment]
     _cv_app, unbound_message=_no_app_msg
 )
@@ -60,7 +40,6 @@ an active HTTP request. Consult the documentation on testing for
 information about how to avoid this problem.\
 """
 _cv_request: ContextVar[RequestContext] = ContextVar("flask.request_ctx")
-__request_ctx_stack = _FakeStack("request", _cv_request)
 request_ctx: RequestContext = LocalProxy(  # type: ignore[assignment]
     _cv_request, unbound_message=_no_req_msg
 )
@@ -70,27 +49,3 @@ request: Request = LocalProxy(  # type: ignore[assignment]
 session: SessionMixin = LocalProxy(  # type: ignore[assignment]
     _cv_request, "session", unbound_message=_no_req_msg
 )
-
-
-def __getattr__(name: str) -> t.Any:
-    if name == "_app_ctx_stack":
-        import warnings
-
-        warnings.warn(
-            "'_app_ctx_stack' is deprecated and will be removed in Flask 2.4.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return __app_ctx_stack
-
-    if name == "_request_ctx_stack":
-        import warnings
-
-        warnings.warn(
-            "'_request_ctx_stack' is deprecated and will be removed in Flask 2.4.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return __request_ctx_stack
-
-    raise AttributeError(name)

src/flask/helpers.py

@@ -2,14 +2,11 @@ from __future__ import annotations
 
 import importlib.util
 import os
-import socket
 import sys
 import typing as t
-import warnings
 from datetime import datetime
 from functools import lru_cache
 from functools import update_wrapper
-from threading import RLock
 
 import werkzeug.utils
 from werkzeug.exceptions import abort as _wz_abort
@@ -492,7 +489,7 @@ def send_file(
 
     .. versionchanged:: 0.7
         MIME guessing and etag support for file-like objects was
-        deprecated because it was unreliable. Pass a filename if you are
+        removed because it was unreliable. Pass a filename if you are
         able to, otherwise attach an etag yourself.
 
     .. versionchanged:: 0.5
@@ -616,81 +613,6 @@ def get_root_path(import_name: str) -> str:
     return os.path.dirname(os.path.abspath(filepath))
 
 
-class locked_cached_property(werkzeug.utils.cached_property):
-    """A :func:`property` that is only evaluated once. Like
-    :class:`werkzeug.utils.cached_property` except access uses a lock
-    for thread safety.
-
-    .. deprecated:: 2.3
-        Will be removed in Flask 2.4. Use a lock inside the decorated function if
-        locking is needed.
-
-    .. versionchanged:: 2.0
-        Inherits from Werkzeug's ``cached_property`` (and ``property``).
-    """
-
-    def __init__(
-        self,
-        fget: t.Callable[[t.Any], t.Any],
-        name: str | None = None,
-        doc: str | None = None,
-    ) -> None:
-        import warnings
-
-        warnings.warn(
-            "'locked_cached_property' is deprecated and will be removed in Flask 2.4."
-            " Use a lock inside the decorated function if locking is needed.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        super().__init__(fget, name=name, doc=doc)
-        self.lock = RLock()
-
-    def __get__(self, obj: object, type: type = None) -> t.Any:  # type: ignore
-        if obj is None:
-            return self
-
-        with self.lock:
-            return super().__get__(obj, type=type)
-
-    def __set__(self, obj: object, value: t.Any) -> None:
-        with self.lock:
-            super().__set__(obj, value)
-
-    def __delete__(self, obj: object) -> None:
-        with self.lock:
-            super().__delete__(obj)
-
-
-def is_ip(value: str) -> bool:
-    """Determine if the given string is an IP address.
-
-    :param value: value to check
-    :type value: str
-
-    :return: True if string is an IP address
-    :rtype: bool
-
-    .. deprecated:: 2.3
-        Will be removed in Flask 2.4.
-    """
-    warnings.warn(
-        "The 'is_ip' function is deprecated and will be removed in Flask 2.4.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-
-    for family in (socket.AF_INET, socket.AF_INET6):
-        try:
-            socket.inet_pton(family, value)
-        except OSError:
-            pass
-        else:
-            return True
-
-    return False
-
-
 @lru_cache(maxsize=None)
 def _split_blueprint_path(name: str) -> list[str]:
     out: list[str] = [name]

src/flask/signals.py

@@ -1,8 +1,5 @@
 from __future__ import annotations
 
-import typing as t
-import warnings
-
 from blinker import Namespace
 
 # This namespace is only for signals provided by Flask itself.
@@ -18,16 +15,3 @@ 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")
-
-
-def __getattr__(name: str) -> t.Any:
-    if name == "signals_available":
-        warnings.warn(
-            "The 'signals_available' attribute is deprecated and will be removed in"
-            " Flask 2.4. Signals are always available.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return True
-
-    raise AttributeError(name)