def compose(*funcs):
    assert len(funcs) > 1, 'At least 2 callables must be passed to compose'
    return reduce(_compose2, funcs)
Begin the scope of a prefix-URI Namespace mapping.
dataset/ETHPy150Open pydata/pandas/pandas/tools/util.py/compose--crossover with--dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/xml/sax/handler.py/ContentHandler.startPrefixMapping