doctestcompare.py 文件源码

def get_parser(self, want, got, optionflags):
        parser = None
        if NOPARSE_MARKUP & optionflags:
            return None
        if PARSE_HTML & optionflags:
            parser = html_fromstring
        elif PARSE_XML & optionflags:
            parser = etree.XML
        elif (want.strip().lower().startswith('<html')
              and got.strip().startswith('<html')):
            parser = html_fromstring
        elif (self._looks_like_markup(want)
              and self._looks_like_markup(got)):
            parser = self.get_default_parser()
        return parser