Remove deprecated code

CHANGES.rst

@@ -1,3 +1,12 @@
+Version 1.9.0
+-------------
+
+Unreleased
+
+-   Remove previously deprecated ``__version__``, ``receiver_connected``,
+    ``Signal.temporarily_connected_to`` and ``WeakNamespace``. :pr:`172`
+
+
 Version 1.8.2
 -------------
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "blinker"
-version = "1.8.2"
+version = "1.9.0"
 description = "Fast, simple object-to-object and broadcast signaling"
 readme = "README.md"
 license = { file = "LICENSE.txt" }

src/blinker/__init__.py

@@ -1,7 +1,5 @@
 from __future__ import annotations
 
-import typing as t
-
 from .base import ANY
 from .base import default_namespace
 from .base import NamedSignal
@@ -17,44 +15,3 @@
     "Signal",
     "signal",
 ]
-
-
-def __getattr__(name: str) -> t.Any:
-    import warnings
-
-    if name == "__version__":
-        import importlib.metadata
-
-        warnings.warn(
-            "The '__version__' attribute is deprecated and will be removed in"
-            " Blinker 1.9.0. Use feature detection or"
-            " 'importlib.metadata.version(\"blinker\")' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return importlib.metadata.version("blinker")
-
-    if name == "receiver_connected":
-        from .base import _receiver_connected
-
-        warnings.warn(
-            "The global 'receiver_connected' signal is deprecated and will be"
-            " removed in Blinker 1.9. Use 'Signal.receiver_connected' and"
-            " 'Signal.receiver_disconnected' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return _receiver_connected
-
-    if name == "WeakNamespace":
-        from .base import _WeakNamespace
-
-        warnings.warn(
-            "'WeakNamespace' is deprecated and will be removed in Blinker 1.9."
-            " Use 'Namespace' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return _WeakNamespace
-
-    raise AttributeError(name)

src/blinker/base.py

@@ -2,14 +2,11 @@
 
 import collections.abc as c
 import typing as t
-import warnings
 import weakref
 from collections import defaultdict
-from contextlib import AbstractContextManager
 from contextlib import contextmanager
 from functools import cached_property
 from inspect import iscoroutinefunction
-from weakref import WeakValueDictionary
 
 from ._utilities import make_id
 from ._utilities import make_ref
@@ -139,15 +136,6 @@ def connect(self, receiver: F, sender: t.Any = ANY, weak: bool = True) -> F:
                 self.disconnect(receiver, sender)
                 raise
 
-        if _receiver_connected.receivers and self is not _receiver_connected:
-            try:
-                _receiver_connected.send(
-                    self, receiver_arg=receiver, sender_arg=sender, weak_arg=weak
-                )
-            except TypeError:
-                self.disconnect(receiver, sender)
-                raise
-
         return receiver
 
     def connect_via(self, sender: t.Any, weak: bool = False) -> c.Callable[[F], F]:
@@ -213,24 +201,6 @@ def muted(self) -> c.Generator[None, None, None]:
         finally:
             self.is_muted = False
 
-    def temporarily_connected_to(
-        self, receiver: c.Callable[..., t.Any], sender: t.Any = ANY
-    ) -> AbstractContextManager[None]:
-        """Deprecated alias for :meth:`connected_to`.
-
-        .. deprecated:: 1.1
-            Renamed to ``connected_to``. Will be removed in Blinker 1.9.
-
-        .. versionadded:: 0.9
-        """
-        warnings.warn(
-            "'temporarily_connected_to' is renamed to 'connected_to'. The old name is"
-            " deprecated and will be removed in Blinker 1.9.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return self.connected_to(receiver, sender)
-
     def send(
         self,
         sender: t.Any | None = None,
@@ -488,23 +458,6 @@ def _clear_state(self) -> None:
         self._by_receiver.clear()
 
 
-_receiver_connected = Signal(
-    """\
-Sent by a :class:`Signal` after a receiver connects.
-
-:argument: the Signal that was connected to
-:keyword receiver_arg: the connected receiver
-:keyword sender_arg: the sender to connect to
-:keyword weak_arg: true if the connection to receiver_arg is a weak reference
-
-.. deprecated:: 1.2
-    Individual signals have their own :attr:`~Signal.receiver_connected` and
-    :attr:`~Signal.receiver_disconnected` signals with a slightly simplified
-    call signature. This global signal will be removed in Blinker 1.9.
-"""
-)
-
-
 class NamedSignal(Signal):
     """A named generic notification emitter. The name is not used by the signal
     itself, but matches the key in the :class:`Namespace` that it belongs to.
@@ -551,41 +504,6 @@ def signal(self, name: str, doc: str | None = None) -> NamedSignal:
         return self[name]
 
 
-class _WeakNamespace(WeakValueDictionary):  # type: ignore[type-arg]
-    """A weak mapping of names to signals.
-
-    Automatically cleans up unused signals when the last reference goes out
-    of scope. This namespace implementation provides similar behavior to Blinker
-    <= 1.2.
-
-    .. deprecated:: 1.3
-        Will be removed in Blinker 1.9.
-
-    .. versionadded:: 1.3
-    """
-
-    def __init__(self) -> None:
-        warnings.warn(
-            "'WeakNamespace' is deprecated and will be removed in Blinker 1.9."
-            " Use 'Namespace' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        super().__init__()
-
-    def signal(self, name: str, doc: str | None = None) -> NamedSignal:
-        """Return the :class:`NamedSignal` for the given ``name``, creating it
-        if required. Repeated calls with the same name return the same signal.
-
-        :param name: The name of the signal.
-        :param doc: The docstring of the signal.
-        """
-        if name not in self:
-            self[name] = NamedSignal(name, doc)
-
-        return self[name]  # type: ignore[no-any-return]
-
-
 default_namespace: Namespace = Namespace()
 """A default :class:`Namespace` for creating named signals. :func:`signal`
 creates a :class:`NamedSignal` in this namespace.
@@ -596,26 +514,3 @@ def signal(self, name: str, doc: str | None = None) -> NamedSignal:
 ``name``, creating it if required. Repeated calls with the same name return the
 same signal.
 """
-
-
-def __getattr__(name: str) -> t.Any:
-    if name == "receiver_connected":
-        warnings.warn(
-            "The global 'receiver_connected' signal is deprecated and will be"
-            " removed in Blinker 1.9. Use 'Signal.receiver_connected' and"
-            " 'Signal.receiver_disconnected' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return _receiver_connected
-
-    if name == "WeakNamespace":
-        warnings.warn(
-            "'WeakNamespace' is deprecated and will be removed in Blinker 1.9."
-            " Use 'Namespace' instead.",
-            DeprecationWarning,
-            stacklevel=2,
-        )
-        return _WeakNamespace
-
-    raise AttributeError(name)