utils.py 文件源码

def check_version(library, min_version):
    """Check minimum library version required

    Parameters
    ----------
    library : str
        The library name to import. Must have a ``__version__`` property.
    min_version : str
        The minimum version string. Anything that matches
        ``'(\\d+ | [a-z]+ | \\.)'``

    Returns
    -------
    ok : bool
        True if the library exists with at least the specified version.
    """
    ok = True
    try:
        library = __import__(library)
    except ImportError:
        ok = False
    else:
        this_version = LooseVersion(library.__version__)
        if this_version < min_version:
            ok = False
    return ok