jupyter_nbconvert/utils/version.py

# encoding: utf-8
"""
Utilities for version comparison

It is a bit ridiculous that we need these.
"""

# Copyright (c) Jupyter Development Team.
# Distributed under the terms of the Modified BSD License.

from distutils.version import LooseVersion


def check_version(v, check):
    """check version string v >= check

    If dev/prerelease tags result in TypeError for string-number comparison,
    it is assumed that the dependency is satisfied.
    Users on dev branches are responsible for keeping their own packages up to date.
    """
    try:
        return LooseVersion(v) >= LooseVersion(check)
    except TypeError:
        return True