def setconsumer(keywords, consumer): 

    """ create a consumer for a set of keywords """

    # normalize to tuples 

    if isinstance(keywords, str): 

        keywords = tuple(map(None, keywords.split()))

    elif hasattr(keywords, 'keywords'): 

        keywords = keywords.keywords 

    elif not isinstance(keywords, tuple): 

        raise TypeError("key %r is not a string or tuple" % (keywords,))

    if consumer is not None and not callable(consumer): 

        if not hasattr(consumer, 'write'): 

            raise TypeError("%r should be None, callable or file-like" % (consumer,))

        consumer = File(consumer)

    py.log.Producer(keywords).set_consumer(consumer)