old_contents: """The IceProd Grid Middleware and tools."""
  
  from __future__ import absolute_import, division, print_function
  
  # version is a human-readable version number.
  
  # version_info is a four-tuple for programmatic comparison. The first
  # three numbers are the components of the version number. The fourth
  # is zero for an official release, positive for a development branch,
  # or negative for a release candidate or beta (after the base version
  # number has been incremented)
  __version__ = '2.3.1'
  version_info = (2, 3, 1, 0)
  
new_contents: """The IceProd Grid Middleware and tools."""
  
  from __future__ import absolute_import, division, print_function
  
  # version is a human-readable version number.
  
  # version_info is a four-tuple for programmatic comparison. The first
  # three numbers are the components of the version number. The fourth
  # is zero for an official release, positive for a development branch,
  # or negative for a release candidate or beta (after the base version
  # number has been incremented)
  __version__ = '2.3.2'
  version_info = (2, 3, 2, 0)
  
subject: increment version