old_contents: import sys
  
  #TODO:
  #https://stackoverflow.com/questions/6677424/how-do-i-import-variable-packages-in-python-like-using-variable-variables-i
  #imported = getattr(__import__(package, fromlist=[name]), name)
  
  if sys.version_info[0] == 2:
    from devsim_py27 import *
  elif sys.version_info[0] == 3 and sys.version_info[1] == 6:
    from .devsim_py36 import *
  elif sys.version_info[0] == 3 and sys.version_info[1] == 7:
    from .devsim_py37 import *
  else:
    raise ImportError('module not available for Python %d.%d please contact technical support' % sys.version_info[0:2])
  
  
  
  
new_contents: import sys
  
  #TODO:
  #https://stackoverflow.com/questions/6677424/how-do-i-import-variable-packages-in-python-like-using-variable-variables-i
  #imported = getattr(__import__(package, fromlist=[name]), name)
  
  if sys.version_info[0] == 2:
    from devsim_py27 import *
    from devsim_py27 import __version__
  elif sys.version_info[0] == 3 and sys.version_info[1] == 6:
    from .devsim_py36 import *
    from .devsim_py36 import __version__
  elif sys.version_info[0] == 3 and sys.version_info[1] == 7:
    from .devsim_py37 import *
    from .devsim_py37 import __version__
  else:
    raise ImportError('module not available for Python %d.%d please contact technical support' % sys.version_info[0:2])
  
  
  
  
  
subject: add version variable