old_contents: #!/usr/bin/python
  #coding:utf8
  
  __author__ = ['markshao']
  
  __version__ = "1.0"
  
  
  def version_number():
      return __version__
  
  
new_contents: #!/usr/bin/python
  #coding:utf8
  
  __author__ = ['markshao']
  
  __version__ = "1.0.1"
  
  
  def version_number():
      return __version__
  
  
subject: change the version