I want to create a template for all my python scripts using this

autocmd bufnewfile *.py so ~/.vim/templates/python_skeleton.txt

the content of python_sekleton.txt is as simple as this:

#!/usr/bin/python
# -*- coding: utf-8 -*-

print 'Hello World'

but vi give error message when i start to edit a new python script:

line    2:
E488: Trailing characters: # -*- coding: utf-8 -*-
line    4:
E488: Trailing characters: print 'Hello World'

it seems '#' is not escaped,and anyone can work it out?thanks i advance