agronholm/anyio 4.14.0

on GitHub

Added support for Python 3.15

Added an asynchronous implementation of the itertools module (#998; PR by @11kkw)

Added the local_port parameter to connect_tcp() to allow binding to a specific local port before connecting (#1067; PR by @nullwiz)

Added support for custom capacity limiters in async path and file I/O functions and classes

Added the create_task() task group method for easier asyncio migration (returns a TaskHandle) (#1098)

Changed TaskGroup.start_soon() to return a TaskHandle

Added an option for TaskGroup.start() to return a TaskHandle (which then contains the start value in the start_value property)

Added the cancel() convenience method to TaskGroup as a shortcut for cancelling the task group's cancel scope

Improved the error message when a known backend is not installed to suggest the install command (#1115; PR by @EmmanuelNiyonshuti)

Improved anyio.Path to preserve subclass types by returning Self in methods that return path objects (#1130; PR by @EmmanuelNiyonshuti)

Changed the parameter type annotation in anyio.Path.write_bytes() to accept any ReadableBuffer, thus allowing it to accept bytearray and memoryview to match pathlib.Path.write_bytes() (#1135; PR by @SAY-5)

Changed several type annotations to only accept callables returning coroutine-like objects instead of arbitrary awaitables:

• TaskGroup.start_soon()
• TaskGroup.start()
• anyio.from_thread.run()

This reverts an earlier change from v3.7.0 which was made in error. (#1153)

Changed anyio.run to support callables returning arbitrary awaitables at runtime on all backends. Previously, this only worked on asyncio (#1171; PR by @gschaffner)

Changed several classes (and their subclasses) to have __slots__ (with __weakref__):

• anyio.CancelScope
• anyio.CapacityLimiter
• anyio.Condition
• anyio.Event
• anyio.Lock
• anyio.ResourceGuard
• anyio.Semaphore

Fixed cancellation exception escaping a cancel scope when triggered via check_cancelled() in a worker thread (#1113)

Fixed TaskGroup raising AttributeError instead of a clear error when entered more than once (#1109; PR by @Bahtya)

Fixed lost type information when passing arguments to lru_cache (#1104; PR by @Graeme22)

Fixed test resumption after KeyboardInterrupt in async generator fixtures on the asyncio backend (#1060; PR by @EmmanuelNiyonshuti)

Fixed import of __main__ in to_process workers when entrypoint script doesn't end in .py, such as when using console_script entrypoints. (#1027; PR by @tapetersen)

Fixed SocketListener.from_socket() returning a TCP listener for AF_UNIX listening sockets, causing accept() to fail with ENOTSUP (#1132; PR by @kudato)

Fixed UDPSocket.aclose() and ConnectedUDPSocket.aclose() on asyncio returning before the underlying socket FD was actually released (#1147; PR by @matias-arrelid)

Fixed trio backend test runner hanging indefinitely instead of raising an error when dynamically accessing an async fixture via request.getfixturevalue (#1148; PR by @EmmanuelNiyonshuti)

Fixed cancelling tasks started through a BlockingPortal after the portal has been stopped (#1013; PR by @puneetdixit200)

Fixed backend_options being ignored when running the Trio backend via anyio.run(); the options are now passed as keyword arguments to trio.run() again, as documented (a regression from AnyIO 3) (#1161; PR by @Zac-HD)

Fixed asyncio Lock and Semaphore deadlocks caused by cancelled waiters left queued during release (#1145; PR by @rasmusfaber, @x42005e1f and @agronholm)