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A library for comparing version strings

Project description

Compare package versions in all their varied glory.

Description

This module provides the compare() function which compares two version strings and returns a negative value, zero, or a positive value depending on whether the first string represents a version number lower than, equal to, or higher than the second one, and the key_compare() function which may be used as a key for e.g. sorted().

This module does not strive for completeness in the formats of version strings that it supports. Some version strings sorted by its rules are:

  • 0.1.0
  • 0.2.alpha
  • 0.2
  • 0.2.1
  • 0.2a
  • 0.2a.1
  • 0.2p3
  • 1.0.beta
  • 1.0.beta.2
  • 1.0

Contact

This module is developed in a Gitlab repository. The author is Peter Pentchev.

Version history

1.0.1

  • add a MANIFEST.in file so that more files will be included in the source distribution even if built without setuptools_scm
  • move some options to the tools invoked by tox.ini to the setup.cfg and pyproject.toml files

1.0.0

  • reformat the source code using black 20
  • drop Python 2.x compatibility:
    • use types and modules from the Python 3 standard library
    • use type annotations, not type hints
    • subclass NamedTuple, using Python 3.6 variable type annotations
  • switch to a declarative setup.cfg file
  • install the module into the unit_tests tox environment
  • add a PEP 517 buildsystem definition to the pyproject.toml file
  • add the py.typed marker
  • push the source down into a src/ subdirectory
  • add a command-line utility exposing some of the functionality
  • add a shell tool for testing the command-line utility
  • add a manual page generated from an scdoc source file

0.1.0

  • first public release

Project details


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