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2.3.3

Release: 2025-08-06

  • Fix type annotations:
    • oop_ext.foundation.weak_ref.IsWeakProxy.
    • oop_ext.foundation.weak_ref.IsWeakRef.
    • oop_ext.foundation.weak_ref.GetWeakProxy.

2.3.2

Release: 2025-08-05

Broken Release

This version contains the incorrect patch -- nothing serious, just the master version instead of the expected patch.

2.3.1

Release: 2025-08-01

Broken Release

This version contains the incorrect patch -- nothing serious, just the master version instead of the expected patch.

2.3.0

Not released due to a problem during deploy.

2.2.0

Release: 2024-10-24

  • PriorityCallback now has type checking support, similar to Callback, with type checked variants: PriorityCallback0, PriorityCallback1, etc (#128).
  • UnregisterContext is now public, meant to be used in type annotations.
  • Python 3.10+ is now required.

2.1.0 (2021-03-19)

  • #48: New type-checker friendly proxy = GetProxy(I, obj) function as an alternative to proxy = I(obj). The latter is not accepted by type checkers in general because interfaces are protocols, which can't be instantiated.

    Also fixed a type-checking error with AsssertImplements:

    Only concrete class can be given where "Type[Interface]" is expected

    This happens due to python/mypy#5374.

2.0.0 (2021-03-10)

  • #47: Interfaces no longer check type annotations at all.

    It was supported initially, but in practice this feature has shown up to be an impediment to adopting type annotations incrementally, as it discourages adding type annotations to improve existing interfaces, or annotating existing implementations without having to update the interface (and all other implementations by consequence).

    It was decided to let the static type checker correctly deal with matching type annotations, as it can do so more accurately than oop-ext did before.

1.2.0 (2021-03-09)

  • #43: Fix support for type annotated Attribute and ReadOnlyAttribute:

    class IFoo(Interface):
    value: int = Attribute(int)

1.1.2 (2021-02-23)

  • #41: Fix regression introduced in 1.1.0 where installing a callback using callback.After or callback.Before would make a method no longer compliant with the signature required by its interface.

1.1.1 (2021-02-23)

  • #38: Reintroduce extra_args argument to Callback._GetKey, so subclasses can make use of it.
  • #36: Fix regression introduced in 1.1.0 where Abstract and Implements decorators could no longer be used in interfaces implementations.

1.1.0 (2021-02-19)

  • #25: oop-ext now includes inline type annotations and exposes them to user programs.

    If you are running a type checker such as mypy on your tests, you may start noticing type errors indicating incorrect usage. If you run into an error that you believe to be incorrect, please let us know in an issue.

    The types were developed against mypy version 0.800.

  • #26: New type-checked Callback variants, Callback0, Callback1, Callback2, etc, providing type checking for all operations(calling, Register, etc) at nearly zero runtime cost.

    Example:

    from oop_ext.foundation.callback import Callback2


def changed(x: int, v: float) -> None: ...


on_changed = Callback2[int, float]()
on_changed(10, 5.25)

  • Fixed Callbacks.Before and Callbacks.After signatures: previously their signature conveyed that they supported multiple callbacks, but it was a mistake which would break callers because every parameter after the 2nd would be considered the sender_as_parameter parameter, which was forwarded to After and Before functions of the _shortcuts.py module.

1.0.0 (2020-10-01)

  • Callbacks can be used as context manager, which provides a Register(callback, function), which automatically unregisters all functions when the context manager ends.
  • Callback.Register(function) now returns an object with a Unregister() method, which can be used to undo the register call.

0.6.0 (2020-01-31)

  • Change back the default value of requires_declaration to True and fix an error (#22) where the cache wasn't properly cleared.

0.5.1 (2019-12-20)

  • Fixes an issue (#20) where mocked classmethods weren't considered a valid method during internal checks.

0.5.0 (2019-12-12)

  • Add optional argument requires_declaration so users can decide whether or not @ImplementsInterface declarations are necessary.

0.4.0 (2019-12-03)

  • Implementations no longer need to explicitly declare that they declare an interface with @ImplementsInterface: the check is done implicitly (and cached) by AssertImplements and equivalent functions.

0.3.2 (2019-08-22)

  • Interface and implementation methods can no longer contain mutable defaults, as this is considered a bad practice in general.
  • Null instances are now hashable.

0.3.1 (2019-08-16)

  • Fix mismatching signatures when creating "interface stubs" for instances:

    foo = IFoo(Foo())

0.3.0 (2019-08-08)

  • Interfaces now support keyword-only arguments.

0.2.4 (2019-03-22)

  • Remove FunctionNotRegisteredError exception, which has not been in use for a few years.

0.2.3 (2019-03-22)

  • Fix issues of ignored exception on nested callback.

0.2.1 (2019-03-14)

  • Fix issues and remove obsolete code.

0.1.8 (2019-03-12)

  • First release on PyPI.