old_contents: "MoCA version"
  from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  
  __version__ = '0.2.9.dev0'
  
new_contents: "MoCA version"
  from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  
  __version__ = '0.3.0.dev0'
  
subject: bump version