old_contents: """a cbclib version storage module."""
  
  version_tuple = (1, 2, 0)
  full_version = "%d.%d.%d" % version_tuple
  
new_contents: """a cbclib version storage module."""
  
  version_tuple = (1, 2, 1)
  full_version = "%d.%d.%d" % version_tuple
  
subject: Change version number to 1.2.1