v1.5.7

This is a minor release that improves robustness of skipping attribute default assignment when the class value is a descriptor during initial instantiation (a previously overlooked code pathway when similar changes were made in the previous release).

v1.5.6

This a minor release that improves to minor things:

• functools.cached_property is now correctly detected as a descriptor and skipped during attribute default preparation.
• In type_label: UnionTypes from Python 3.10+ are show the nested types, and both Union and UnionType types are now formatted in the Python 3.10 style: e.g. "int | str".

v1.5.5

Improves the robustness of sentinel checks.

v1.5.4

DO NOT USE. Introduced some sentinel related bugs.

v1.5.3

This is a minor release with one minor new feature: support for passing spec_classes.UNCHANGED to scalar attribute transformations to skip the setting of new values; especially useful in combination with attribute preparers (where you may not want to commit a null cached value).

v1.5.2

This is a minor release with one fix:

• In multithreaded contexts, it is possible to experience issues bootstrapping spec-classes due to race conditions when replacing the new method.

v1.5.1

This is a minor release which fixes one minor oversight:

• The Alias type will now protect the fallback, if provided, by deepcopying it prior to returning it; preventing accidental mutations downstream.

v1.5.0

This is a relatively small feature release, which:

• adds support for nested Alias instances (e.g. Alias("a.b.c['d']")).
• fixes labeling of Literal types.

v1.4.5

This is another minor release:

• Extended type checking to tuple and type annotations.
• Removed weakref'ed spec-class instance state that was slowing down instantiation of simple classes by as much as 400%.
• Fixed _GenericAlias catching all errors during setting of __orig_class in Python 3.11+ (preventing Keyed* classes from raising on type errors).
• Migrated to ruff tooling for linting.

v1.4.4

This is a minor release that fixes one issue affecting spec-class state imputation when spec-classes are coming from deserialized representations.