code: def make_template_name(self, obj):
          
          template_name = obj.__class__.__name__
  
          def repl(match):
              return '_' + match.group(0).lower()
  
          return re.sub('[A-Z]', repl, template_name)[1:]
docs: Return the canonical template name for an object instance.
  
          This method converts Python-style class names (PEP 8's recommended
          CamelCase, aka CapWords) to lower_case_with_underscords.  Here
          is an example with code:
  
          >>> class HelloWorld(object):
          ...     pass
          >>> hi = HelloWorld()
          >>>
          >>> locator = Locator()
          >>> locator.make_template_name(hi)
          'hello_world'