version.rst

Version Handling

A core requirement of dealing with packages is the ability to work with versions.

See Version Specifiers Specification for more details on the exact format implemented in this module, for use in Python Packaging tooling.

Usage

>>> from packaging.version import Version, parse >>> v1 = parse("1.0a5") >>> v2 = Version("1.0") >>> v1 <Version('1.0a5')> >>> v2 <Version('1.0')> >>> v1 < v2 True >>> v1.epoch 0 >>> v1.release (1, 0) >>> v1.pre ('a', 5) >>> v1.is_prerelease True >>> v2.is_prerelease False >>> Version("french toast") Traceback (most recent call last): ... InvalidVersion: Invalid version: 'french toast' >>> Version("1.0").post >>> Version("1.0").is_postrelease False >>> Version("1.0.post0").post 0 >>> Version("1.0.post0").is_postrelease True

Reference

packaging.version