old_contents: import settings
  import sys
  
  if not settings.DEBUG:
      sys.tracebacklimit = 0
  
  __version__ = '0.5.0'
  
new_contents: import settings
  import sys
  
  if not settings.DEBUG:
      sys.tracebacklimit = 0
  
  __version__ = '0.5.5'
  
subject: bump up dev version to 0.5.5