| 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. | |
| .. _Version Specifiers Specification: https://packaging.python.org/en/latest/specifications/version-specifiers/ | |
| Usage | |
| ----- | |
| .. doctest:: | |
| >>> 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 | |
| --------- | |
| .. automodule:: packaging.version | |
| :members: | |
| :special-members: | |