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CHANGELOG.md

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trio-util 0.8.0 (2024-11-17)

Added

  • periodic() is now type-annotated

Fixed

  • runtime fixes for Python 3.13

trio-util 0.7.0 (2021-11-14)

Added

  • iter_move_on_after() and iter_fail_after() are iterator wrappers that apply a timeout to a single iteration.
  • run_and_cancelling() is a context manager that runs a background task and cancels it on exit of the block.
  • AsyncValue.eventual_values() supports a held_for option.

Fixed

  • move_on_when() now returns a cancel scope other than the implementation's nursery, so that cancelled_caught is meaningful.

trio-util 0.6.0 (2021-09-05)

Added

  • AsyncValue and compose_values() now have type hints and generic typing.
  • move_on_when() is a cancel scope that exits when a given async callable returns.

Changed

  • _transform_ parameter of compose_values() is now keyword-only.

Fixed

  • slight performance improvement to AsyncValue.value setter when there is a predicate match.

trio-util 0.5.0 (2021-04-06)

⚠ includes breaking changes!

Added

  • eventual_values() is a new iterator of AsyncValue which assures "eventual consistency" (i.e. the caller always receives the latest value).
  • open_transform() is a new context manager of AsyncValue enabling derived values.

Changed

  • compose_values() context manager was changed from async to synchronous.
  • compose_values() now takes an optional transform function.
  • RepeatedEvent replaces both UnqueuedRepeatedEvent and MailboxRepeatedEvent. The new class handles both unqueued and eventual consistency cases, while supporting multiple listeners. It also offers a one-shot wait_event() method for cases where an iterator isn't needed.

trio-util 0.4.1 (2021-03-27)

Fixed

  • compose_values() had a race where the composed value may be incorrect if the underlying values are mutated while entering the async context manager.

trio-util 0.4.0 (2021-02-01)

Added

  • transitions() is a new method of AsyncValue that allows subscription to value transitions via an iterator.

Changed

  • UnqueuedRepeatedEvent supports broadcasting to multiple listeners
  • TaskStats now reports all scheduling rates over a given threshold, rather than the maximum observed rate.

Fixed

  • multi_error_defer_to() would use the wrong context when raising RuntimeError

trio-util 0.3.0 (2020-10-27)

Added

  • @trio_async_generator is a decorator which adapts a generator containing Trio constructs for safe use. (Normally, it's not allowed to yield from a nursery or cancel scope when implementing async generators.)

Changed

  • TaskStats now reports all slow task step events over a given threshold, rather than the maximum observed task step.

Removed

  • AsyncDictionary has been removed. It didn't work well for the advertised use case of multiplexing a network connection, and trying to address that while keeping the regular dict interface (itself of unproven value) seemed to result in an overly complex API. See discussion.

trio-util 0.2.0 (2020-09-09)

Added

  • AsyncValue.wait_value() / wait_transition() additionally accept a plain value to match by equality, and AsyncBool is now a subclass of AsyncValue.
  • held_for is a new option of AsyncValue.wait_value(), requiring a match for the specified duration.
  • compose_values() is a context manager that enables waiting on conditions involving multiple async values
  • multi_error_defer_to() is a context manager that allows deferring trio.MultiError exceptions to a single, privileged exception.

trio-util 0.1.1 (2020-06-04)

Fixed

  • Support rename of trio.hazmat to trio.lowlevel

trio-util 0.1.0 (2019-08-22)

Initial version