new_contents: #!/usr/bin/env python
  # -*- coding: UTF-8 -*-
  
  
  class Tag(object):
      """Tag class"""
  
      def __init__(self, content=None):
          self.content = content
          self.attrs = ' '.join(['%s="%s"' % (attr, value)
                                 for attr, value in self.attrs])
  
      def __str__(self):
          return '<%s%s>\n    %s\n</%s>' % (self.name, self.attrs and ' ' + self.attrs or '', self.content, self.name)
  
  
  class ScriptTag(Tag):
      name = 'script'
      attrs = (('type', 'text/javascript'),)
  
  
  class AnonymousFunction(object):
      def __init__(self, arguments, content):
          self.arguments = arguments
          self.content = content
  
      def __str__(self):
          return 'function(%s) { %s }' % (self.arguments, self.content)
  
  
  class Function(object):
  
      def __init__(self, name):
          self.name = name
          self.statements = []
  
      def __str__(self):
          operations = [self.name]
          operations.extend(str(statement) for statement in self.statements)
          return '%s' % ('.'.join(operations),)
  
      def __getattr__(self, attr):
          self.statements.append(attr)
          return self
  
      def __call__(self, args=None):
          if args is not None and not isinstance(args, basestring):
              self.statements[-1] = self.statements[-1] + '(%s)' % (args)
          return self
  
  
  if __name__ == '__main__':
      nv = Function('nv').addGraph(
          AnonymousFunction('', Function('nv').models.pieChart(
              ).x(
                  AnonymousFunction('d', 'return d.label;')
              ).y(
                  AnonymousFunction('d', 'return d.value;')
              ).showLabels('true')
          )
      )
  
subject: Add translator.py