old_contents: """Cmdlr infomation files."""
  
  VERSION = (3, 0, 6)
  DESCRIPTION = ('An extensible comic subscriber.')
  LICENSE = 'MIT'
  AUTHOR = 'Civalin'
  AUTHOR_EMAIL = 'larinawf@gmail.com'
  PROJECT_URL = 'https://github.com/civalin/cmdlr'
  PROJECT_NAME = 'cmdlr'
  
new_contents: """Cmdlr infomation files."""
  
  VERSION = (3, 1, 0)
  DESCRIPTION = ('An extensible comic subscriber.')
  LICENSE = 'MIT'
  AUTHOR = 'Civalin'
  AUTHOR_EMAIL = 'larinawf@gmail.com'
  PROJECT_URL = 'https://github.com/civalin/cmdlr'
  PROJECT_NAME = 'cmdlr'
  
subject: update version number to 3.1.0