chore(deps): bump anyio from 4.13.0 to 4.15.1 in /backend

[dependabot]

Bumps anyio from 4.13.0 to 4.15.1.

Release notes

Sourced from anyio's releases.

4.15.1

• Implemented a compatibility fix for supporting direct access of anyio.* submodules from the main package even when those submodules were not directly imported first (#1311 <agronholm/anyio#1311)

4.15.0

• Added support for the newer keyword-only arguments on anyio.Path methods to match the standard library pathlib.Path:

  • follow_symlinks on exists() (Python 3.12+)
  • follow_symlinks on is_dir() (Python 3.13+)
  • follow_symlinks on is_file() (Python 3.13+)
  • follow_symlinks on owner() (Python 3.13+)
  • follow_symlinks on group() (Python 3.13+)
  • newline on read_text() (Python 3.13+)

  (#1286, #1293; PR by @​jaideeppyne)

• Added amap, gather, and as_completed utility functions to simplify common patterns (#1173; PR by @​Graeme22)

• Added --anyio-mode command-line option as an alternative to the anyio_mode ini setting, and fix the pytest plugin's auto mode detection to recognize the mode when set via either mechanism(e.g: pytest_asyncio). (#1242; PR by @​EmmanuelNiyonshuti)

• Added the anyio.Future synchronization primitive which behaves similar to asyncio.Future, allowing tasks to wait for a value (or exception) from another task (#1146; PR by @​Vizonex)

• Added guidance for managing multiple memory object stream producers and consumers with cloned streams (#330; PR by @​nightcityblade)

• Added StapledObjectStream.send_nowait() that delegates to the underlying ObjectSendStream, if it implements it (#1241; PR by @​davidbrochart)

• Added the move_on_at() and fail_at() functions to complement move_on_after() and fail_after()

• Changed the default name for a task spawned with TaskGroup.create_task(func()) to match the default task name for the analogous task spawned with TaskGroup.start_soon(func) or TaskGroup.start(func) in more situations. Previously, the default name of a TaskGroup.create_task task never included the module name. (The default name for a task spawned with TaskGroup.start_soon or TaskGroup.start typically includes the module name.) (#1234; PR by @​gschaffner)

• Changed the anyio and anyio.abc modules to lazily (much like 810) import the necessary submodules. This is done by parsing the AST of the module and building a lookup table from the if TYPE_CHECKING: block. A fallback mode has been provided for installations where the source code is unavailable (e.g. PyInstaller). (#1169)

• Fixed free-threading compatibility issues arising from the fact that on Python 3.14 free-threading builds, newly created threads inherit the current context by default, causing AnyIO to behave erroneously in relation to start_blocking_portal() and anyio.to_thread.run_sync() (#1224; PR by @​EmmanuelNiyonshuti)

• Fixed SpooledTemporaryFile.readinto() and readinto1() reading twice before rollover, so the destination buffer was overwritten by the second read and the file position advanced twice, silently losing data (#1215; PR by @​c-tonneslan)

• Added a reason parameter to fail_after (and the new fail_at) allowing for added exception context when raising TimeoutError (#1227; PR by @​Graeme22)

• Fixed the default TaskHandle.name missing part of the task name for tasks started with TaskGroup.start on Trio (#1231; PR by @​gschaffner)

• Fixed anyio.run leaking, or at least, delaying collection of loop and root_task due to the root task being cached in a RunVar. (#1203; PR by @​tapetersen)

• Fixed anyio.Path.with_stem() silently producing a wrong path (e.g. Path(".txt")) instead of raising ValueError when given an empty stem on a path with a non-empty suffix, unlike pathlib.PurePath.with_stem (#1200; PR by @​Sanjays2402)

• Fixed UNIXSocketStream.aclose() raising asyncio.InvalidStateError when a concurrent receive or send operation had just been cancelled on the asyncio backend (#1267; PR by @​alloutflo)

• Fixed the pytest plugin importing the deprecated _pytest.python.CallSpec2 alias, which triggers PytestRemovedIn10Warning on pytest>=9.2 and crashes pytest at startup when filterwarnings = error is configured (#1271; PR by @​matthewfeickert)

• Fixed an asyncio worker thread race that could raise RuntimeError when the event loop closed between checking its state and scheduling the worker result (#1265; PR by @​hansu650)

• Fixed CapacityLimiter on the asyncio backend over-granting tokens when total_tokens was raised while the limiter was over-subscribed (#1223; PR by @​zelinewang)

... (truncated)

Commits

• ffcd154 Bumped up the version
• 0ecf5ed Added a workaround for third party code accessing unimported submodules (#1309)
• 9283662 Bumped up the version
• d137692 Improved the instructions for AI agents
• 033fc52 Shield TemporaryDirectory cleanup from cancellation (#1304)
• 942e9a6 [pre-commit.ci] pre-commit autoupdate (#1305)
• b825c3b Fixed pyproject.toml changes not triggering the test suite
• 9727dc5 Fixed start inconsistencies between trio and asyncio (#1198)
• b05fe6d Fixed wrong type in move_on_after (#1297)
• 44d0c93 Fixed asyncio task group coroutine cleanup (#1275)
• Additional commits viewable in compare view

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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