def labelCompare(evr_a, evr_b):
return compare_evrs(evr_a, evr_b)<EOL>
Convenience function to provide the same behaviour as
    labelCompare from rpm-python.

    To be used as a drop-in replacement for labelCompare, thus the
    utilization of the non-standard camelCase variable name.

    To use the version_utils version and fall back to rpm:

    try:
        from version_utils.rpm import labelCompare
    except ImportError:
        from rpm import labelCompare

    :param tuple evr_a: an EVR tuple
    :param tuple evr_b: an EVR tuple