zoneinfo

• Fixed an issue where the C implementation of ZoneInfo.__init_subclass__ was not a classmethod, causing errors when attempting to subclass ZoneInfo (GH-82, GH-83).

• Added support for PyPy 3.6 (GH-74); when installed on PyPy, the library will not use the C extension, since benchmarks indicate that the pure Python implementation is faster.

This is the first public release of backports.zoneinfo. It contains all the features from the zoneinfo release in Python 3.9.0b1, with the following changes:

• Added support for Python 3.6, 3.7 and 3.8 (GH-69, GH-70).
• The module is in the backports namespace rather than zoneinfo.
• There is no support for compile-time configuration of TZPATH.
• Fixed use-after-free in the module_free function (bpo-40705, GH-69).
• Minor refactoring to the C extension to avoid compiler warnings (bpo-40686, bpo-40714, CPython PR #20342, GH-72).
• Removed unused imports, unused variables and other minor de-linting (GH-71).

This is the second beta release of the backports.zoneinfo module. It adds Python 3.7 compatibility to the module and fixes one use-after-free.

This is the first beta release of the first release of this backport.

See Python 3.9's What's New for more information.