def _massage_metakeys(dct, prfx):
    lowprefix = prfx.lower()
    ret = {}
    for k, v in list(dct.items()):
        if not k.lower().startswith(lowprefix):
            k = "%s%s" % (prfx, k)
        ret[k] = v
    return ret
Returns the group for the provided label.
dataset/ETHPy150Open rackspace/pyrax/pyrax/object_storage.py/_massage_metakeys--crossover with--dataset/ETHPy150Open menpo/menpo/menpo/landmark/base.py/LandmarkManager.__getitem__