See http://failboat.me/2009/cute-functions-creating-pseudo-operators-in-python/ for more details.

#Hello World

class Operator(object):
    def __init__(self, func, count=2):
        self._func_ = func
        self._args_ = []
        self._count_ = count
    def __ror__(self, first_arg):
        self._args_.append(first_arg)
        return

…