new_contents: #!/usr/bin/env python
  
  from mako.template import Template
  from mako.runtime import Context
  from StringIO import StringIO
  
  mytemplate = Template("hello, ${name}!")
  buf = StringIO()
  ctx = Context(buf, name="Akagi201")
  mytemplate.render_context(ctx)
  print(buf.getvalue())
  
subject: add hello4