> Territorial Dispute

  def path_normalize(path):
      try:
          path = re.sub('%(.+)%', (lambda m: ('%{0}%'.format(m.group(1)) if (m.group(1) not in datastore.ENV_VARS) else datastore.ENV_VARS[m.group(1)])), path)
      except:
          tedilog.error(...)
      return path

What a terrible way to write

  return re.sub(r'%(.+)%', lambda m: datastore.ENV_VARS.get(m.group(1), m.group(0)), path)