StrictVersion

class audeer.StrictVersion(version=None)

Version numbering for anal retentives and software idealists.

This implementation was originally part of distutils as version.StrictVersion.

A version number consists of two or three dot-separated numeric components, with an optional “pre-release” tag on the end. The pre-release tag consists of the letter ‘a’ or ‘b’ followed by a number. If the numeric components of two version numbers are equal, then one with a pre-release tag will always be deemed earlier (lesser) than one without.

The following are valid version numbers (shown in the order that would be obtained by sorting according to the supplied cmp function): '0.4', '0.4.1', '0.5a1', '0.5b3', '0.5', '0.9.6', '1.0', '1.0.4a3', '1.0.4b1', '1.0.4'.

The following are examples of invalid version numbers: '1', '2.7.2.2', '1.3.a4', '1.3pl1', '1.3c4'.

Parameters

version – version string

Raises

ValueError – if version does not match the StrictVersion.version_re pattern

Examples

>>> v1 = StrictVersion("1.17.2a1")
>>> v1
StrictVersion ('1.17.2a1')
>>> v1.version
(1, 17, 2)
>>> v1.prerelease
('a', 1)
>>> v2 = StrictVersion("1.17.2")
>>> v1 < v2
True

__eq__()

StrictVersion.__eq__(other)

Check if version equals another version.

__ge__()

StrictVersion.__ge__(other)

Check if version is greater or equal another version.

__gt__()

StrictVersion.__gt__(other)

Check if version is greater than another version.

__le__()

StrictVersion.__le__(other)

Check if version is less or equal another version.

__lt__()

StrictVersion.__lt__(other)

Check if version is less than another version.

__repr__()

StrictVersion.__repr__()

Python code to recreate instance.

__str__()

StrictVersion.__str__()

String representation of version.

parse()

StrictVersion.parse(version)

Parse a version string.

When called this updates the stored version under self.version.

Parameters

version – version string

prerelease

StrictVersion.prerelease

Parsed prerelease part of version.

version

StrictVersion.version

Parsed version.

version_re

StrictVersion.version_re = re.compile('^(\\d+) \\. (\\d+) (\\. (\\d+))? ([ab](\\d+))?$', re.VERBOSE|re.ASCII)

Version regexp pattern.

The regexp pattern is used to split the version into major, minor, patch, prerelease, prerelease number when parsing it.