Class Builder

Lib/test/test_xml_etree.py:633–639

        with open(SIMPLE_XMLFILE) as f:
            data = f.read()
        class Builder(list):
            def start(self, tag, attrib):
                self.append(("start", tag))
            def end(self, tag):
                self.append(("end", tag))
            def data(self, text):
                pass
        builder = Builder()
        parser = ET.XMLParser(target=builder)
        parser.feed(data)