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Changelog

CalVer, YY.month.patch

24.5.1

  • Add ASYNC912: no checkpoints in with statement are guaranteed to run.

24.4.1

  • ASYNC91X fix internal error caused by multiple try/except incorrectly sharing state.

24.3.6

  • ASYNC100 no longer triggers if a context manager contains a yield.

24.3.5

  • ASYNC102 (no await inside finally or critical except) no longer raises warnings for calls to aclose() on objects in trio/anyio code. See python-trio#156

24.3.4

  • ASYNC110 (don't loop sleep) now also warns if looping [trio/anyio].lowlevel.checkpoint().

24.3.3

  • Add ASYNC251: time.sleep() in async method.

24.3.2

  • Add ASYNC250: blocking sync call input() in async method.

24.3.1

  • Removed TRIO117, MultiError removed in trio 0.24.0
  • Renamed the library from flake8-trio to flake8-async, to indicate the checker supports more than just trio.
  • Renamed all error codes from TRIOxxx to ASYNCxxx
  • Renamed the binary from flake8-trio to flake8-async
  • Lots of internal renaming.
  • Added asyncio support for several error codes
  • added --library

23.5.1

  • TRIO91X now supports comprehensions
  • TRIO100 and TRIO91X now supports autofixing
  • Renamed --enable-visitor-codes-regex to --enable
  • Added --disable, --autofix and --error-on-autofix

23.2.5

  • Fix false alarms for @pytest.fixture-decorated functions in TRIO101, TRIO910 and TRIO911

23.2.4

  • Fix TRIO900 false alarm on nested functions
  • TRIO113 now also works on anyio.TaskGroup

23.2.3

  • Fix get_matching_call when passed a single string as base. Resolves possibly several false alarms, TRIO210 among them.

23.2.2

  • Rename TRIO107 to TRIO910, and TRIO108 to TRIO911, and making them optional by default.
  • Allow @pytest.fixture()-decorated async generators, since they're morally context managers
  • Add support for checking code written against anyio
  • Add TRIO118: Don't assign the value of anyio.get_cancelled_exc_class() to a variable, since that breaks linter checks and multi-backend programs.

23.2.1

  • TRIO103 and TRIO104 no longer triggers when trio.Cancelled has been handled in previous except handlers.
  • Add TRIO117: Reference to deprecated trio.[NonBase]MultiError; use [Base]ExceptionGroup instead.
  • Add TRIO232: blocking sync call on file object.
  • Add TRIO212: blocking sync call on httpx.Client object.
  • Add TRIO222: blocking sync call to os.wait*
  • TRIO221 now also looks for os.posix_spawn[p]

23.1.4

  • TRIO114 avoids a false alarm on posonly args named "task_status"
  • TRIO116 will now match on any attribute parameter named .inf, not just math.inf.
  • TRIO900 now only checks @asynccontextmanager, not other decorators passed with --no-checkpoint-warning-decorators.

23.1.3

  • Add TRIO240: usage of os.path in async function.
  • Add TRIO900: ban async generators not decorated with known safe decorator

23.1.2

  • Add TRIO230, TRIO231 - sync IO calls in async function

23.1.1

  • Add TRIO210, TRIO211 - blocking sync call in async function, using network packages (requests, httpx, urllib3)
  • Add TRIO220, TRIO221 - blocking sync call in async function, using subprocess or os.

22.12.5

  • The --startable-in-context-manager and --trio200-blocking-calls options now handle spaces and newlines.
  • Now compatible with flake8-noqa's NQA102 and NQA103 checks.

22.12.4

  • TRIO200 no longer warns on directly awaited calls

22.12.3

  • Worked around configuration-parsing bug for TRIO200 warning (more to come)

22.12.2

  • Add TRIO200: User-configured blocking sync call in async function

22.12.1

  • TRIO114 will now trigger on the unqualified name, will now only check the first parameter directly, and parameters to function calls inside that.
  • TRIO113 now only supports names that are valid identifiers, rather than fnmatch patterns.
  • Add TRIO115: Use trio.lowlevel.checkpoint() instead of trio.sleep(0).

22.11.5

  • Add TRIO116: trio.sleep() with >24 hour interval should usually be trio.sleep_forever().

22.11.4

  • Add TRIO114 Startable function not in --startable-in-context-manager parameter list.

22.11.3

  • Add TRIO113, prefer await nursery.start(...) to nursery.start_soon() for compatible functions when opening a context manager

22.11.2

  • TRIO105 now also checks that you awaited nursery.start().

22.11.1

  • TRIO102 is no longer skipped in (async) context managers, since it's not a missing-checkpoint warning.

22.9.2

  • Fix a crash on nontrivial decorator expressions (calls, PEP-614) and document behavior.

22.9.1

  • Add --no-checkpoint-warning-decorators option, to disable missing-checkpoint warnings for certain decorated functions.

22.8.8

  • Fix false alarm on TRIO107 with checkpointing try and empty finally
  • Fix false alarm on TRIO107&108 with infinite loops

22.8.7

  • TRIO107+108 now ignores asynccontextmanagers, since both __aenter__ and __aexit__ should checkpoint. async with is also treated as checkpointing on both enter and exit.
  • TRIO107 now completely ignores any function whose body consists solely of ellipsis, pass, or string constants.
  • TRIO103, 107 and 108 now inspects while conditions and for iterables to avoid false alarms on a couple cases where the loop body is guaranteed to run at least once.

22.8.6

  • TRIO103 now correctly handles raises in loops, i.e. raise in else is guaranteed to run unless there's a break in the body.

22.8.5

  • Add TRIO111: Variable, from context manager opened inside nursery, passed to start[_soon] might be invalidly accessed while in use, due to context manager closing before the nursery. This is usually a bug, and nurseries should generally be the inner-most context manager.
  • Add TRIO112: this single-task nursery could be replaced by awaiting the function call directly.

22.8.4

  • Fix TRIO108 raising errors on yields in some sync code.
  • TRIO109 now skips all decorated functions to avoid false alarms

22.8.3

  • TRIO108 now gives multiple error messages; one for each path lacking a guaranteed checkpoint

22.8.2

  • Merged TRIO108 into TRIO107
  • TRIO108 now handles checkpointing in async iterators

22.8.1

  • Added TRIO109: Async definitions should not have a timeout parameter. Use trio.[fail/move_on]_[at/after]
  • Added TRIO110: while <condition>: await trio.sleep() should be replaced by a trio.Event.

22.7.6

  • Extend TRIO102 to also check inside except BaseException and except trio.Cancelled
  • Extend TRIO104 to also check for yield
  • Update error messages on TRIO102 and TRIO103

22.7.5

  • Add TRIO103: except BaseException or except trio.Cancelled with a code path that doesn't re-raise
  • Add TRIO104: "Cancelled and BaseException must be re-raised" if user tries to return or raise a different exception.
  • Added TRIO107: Async functions must have at least one checkpoint on every code path, unless an exception is raised
  • Added TRIO108: Early return from async function must have at least one checkpoint on every code path before it.

22.7.4

  • Added TRIO105 check for not immediately awaiting async trio functions.
  • Added TRIO106 check that trio is imported in a form that the plugin can easily parse.

22.7.3

  • Added TRIO102 check for unsafe checkpoints inside finally: blocks

22.7.2

  • Avoid TRIO100 false-alarms on cancel scopes containing async for or async with.

22.7.1

  • Initial release with TRIO100 and TRIO101