code.delx.au - bg-scripts/blob - python24_adapter.py

   1 #! python
   2
   3 import collections
   4
   5 class defaultdict(dict):
   6         def __init__(self, default_factory):
   7                 self.default_factory = default_factory
   8         def __missing__(self, key):
   9                 if self.default_factory is None:
  10                         raise KeyError(key)
  11                 self[key] = value = self.default_factory()
  12                 return value
  13         def __getitem__(self, key):
  14                 try:
  15                         return dict.__getitem__(self, key)
  16                 except KeyError:
  17                         return self.__missing__(key)
  18
  19 if not hasattr(collections, 'defaultdict'):
  20         collections.defaultdict = defaultdict