old_contents: # ActivitySim
  # Copyright (C) 2014-2015 Synthicity, LLC
  # See full license in LICENSE.txt.
  
new_contents: # ActivitySim
  # Copyright (C) 2014-2015 Synthicity, LLC
  # See full license in LICENSE.txt.
  
  __version__ = version = '0.1dev'
  
subject: add a version number to __init__.py