content: import xml.sax
  from xml import sax
  import defusedxml.sax
  
  class ExampleContentHandler(xml.sax.ContentHandler):
      def __init__(self):
          xml.sax.ContentHandler.__init__(self)
  
      def startElement(self, name, attrs):
          print('start:', name)
  
      def endElement(self, name):
          print('end:', name)
  
      def characters(self, content):
          print('chars:', content)
  
  def main():
      xmlString = "<note>\n<to>Tove</to>\n<from>Jani</from>\n<heading>Reminder</heading>\n<body>Don't forget me this weekend!</body>\n</note>"
      # bad
      xml.sax.parseString(xmlString, ExampleContentHandler())
      xml.sax.parse('notaxmlfilethatexists.xml', ExampleContentHandler())
      sax.parseString(xmlString, ExampleContentHandler())
      sax.parse('notaxmlfilethatexists.xml', ExampleContentHandler)
  
      # good
      defusedxml.sax.parseString(xmlString, ExampleContentHandler())
  
      # bad
      xml.sax.make_parser()
      sax.make_parser()
      print('nothing')
      # good
      defusedxml.sax.make_parser()
  
  if __name__ == "__main__":
      main()
  