numpy.lib.NumpyVersion — NumPy v1.11 Manual (original) (raw)

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 otherNumpyVersion instance. Note that all development versions of the same (pre-)release compare equal.

New in version 1.9.0.

Examples

from numpy.lib import NumpyVersion if NumpyVersion(np.version) < '1.7.0'): ... print('skip') skip

NumpyVersion('1.7') # raises ValueError, add ".0"