beartype/beartype v0.10.4

Beartype 0.10.4

on GitHub

Beartype 0.10.4 released.

This patch release adumbrates with breathless support for mypy ≥ 0.940, the static type checker formerly known as "The Static Type Checker Whose Name Shall not Be Spoken."

This patch release resolves 5 issues and merges 0 pull requests. Noteworthy changes include:

Compatibility Improved

• mypy ≥ 0.940. The beartype codebase now sports improved compatibility with the recently released mypy 0.94x series, which previously outted the @beartype decorator with a "Condition can't be inferred, unable to merge overloads [misc]" fatal error at static type-checking time. Specifically, this release fundamentally refactors (and in so doing mildly optimizes) our private beartype._decor.main submodule to leverage conditional overloads under the astute tutelage of mypy maestro @cdce8p; the @beartype.beartype decorator itself now resides in a new private beartype._decor.cache.cachedecor submodule, because obfuscation is the key to all successful open-source efforts. Doing so resolves issues #111 and #112 dual-reported concurrently by cutting-edge Microsoft luminary @daxpryce and German typing bad-ass @twoertwein.

Features Optimized

• Importation time. The first external importation from the beartype codebase is now significantly faster when the definition of the @beartype.beartype decorator reduces to a noop (e.g., due to python3 -O optimization), partially resolving issue #94 kindly requested by the well-tanned and -toned typing star @matanster.

Issues Resolved

• beartype.abby under python3 -O. This release resolves an unreported critical defect in our new functional API (i.e., the pair of beartype.abby.is_bearable() and beartype.abby.die_if_unbearable() functions), which previously reduced to a noop when the @beartype.beartype decorator reduced to a noop (e.g., due to python3 -O optimization). By extricating the @beartype.beartype decorator into the beartype._decor.cache.cachedecor submodule (as described above), our functional API now directly defers to that decorator regardless of what the beartype package externally presents to third-party code.

(Ironwrought irony untaught!)