def strhash(*args, **kwargs):
    """
    Generate a string hash value for an arbitrary set of args and kwargs.  This
    relies on the repr of each element.

    :param args: arbitrary tuple of args.
    :param kwargs: arbitrary dictionary of kwargs.
    :returns: hashed string of the arguments.
    """
    if kwargs:
        return '%r,%r' % (args, sorted(kwargs.items()))
    return '%r' % (args, )