def prettify_keys(string):
    r = re.compile("bandwidth_([0-9]{1,3})")
    def replacer(match):
        m = match.groups()[0]
        return "bandwidth " + m
    return r.sub(replacer, string)
Utility function used to clean keys with numerical values, so that
dataset/ETHPy150Open redhat-cip/edeploy/tools/grapher/models/basegraph.py/prettify_keys