numpy.lib.NumpyVersion#
- class numpy.lib.NumpyVersion(vstring)[source]#
Parse and compare numpy version strings.
NumPy has the following versioning scheme (numbers given are examples; they can be > 9 in principle):
Released version: ‘1.8.0’, ‘1.8.1’, etc.
Alpha: ‘1.8.0a1’, ‘1.8.0a2’, etc.
Beta: ‘1.8.0b1’, ‘1.8.0b2’, etc.
Release candidates: ‘1.8.0rc1’, ‘1.8.0rc2’, etc.
Development versions: ‘1.8.0.dev-f1234afa’ (git commit hash appended)
- Development versions after a1: ‘1.8.0a1.dev-f1234afa’,
‘1.8.0b2.dev-f1234afa’, ‘1.8.1rc1.dev-f1234afa’, etc.
Development versions (no git hash available): ‘1.8.0.dev-Unknown’
Comparing needs to be done against a valid version string or other
NumpyVersion
instance. Note that all development versions of the same (pre-)release compare equal.New in version 1.9.0.
- Parameters
- vstringstr
NumPy version string (
np.__version__
).
Examples
>>> from numpy.lib import NumpyVersion >>> if NumpyVersion(np.__version__) < '1.7.0': ... print('skip') >>> # skip
>>> NumpyVersion('1.7') # raises ValueError, add ".0" Traceback (most recent call last): ... ValueError: Not a valid numpy version string