Something

import doctestopts = doctest.ELLIPSISclass Filter(object):    def __init__(self, want):        self.want = want    def match(self, got):        checker = doctest.OutputChecker()        return checker.check_output(self.want, got, opts)if __name__ == '__main__':    filter = Filter("...boo!...")    for test in ["boohoo!", "boo!", "boobooboo!boo", "this is just a boo! fun little idea"]:        print test, filter.match(test)