Lib/UserDict.py

   1 """A more or less complete user-defined wrapper around dictionary objects."""
   2
   3 class UserDict:
   4     def __init__(self, dict=None):
   5         self.data = {}
   6         if dict is not None: self.update(dict)
   7     def __repr__(self): return repr(self.data)
   8     def __cmp__(self, dict):
   9         if isinstance(dict, UserDict):
  10             return cmp(self.data, dict.data)
  11         else:
  12             return cmp(self.data, dict)
  13     def __len__(self): return len(self.data)
  14     def __getitem__(self, key): return self.data[key]
  15     def __setitem__(self, key, item): self.data[key] = item
  16     def __delitem__(self, key): del self.data[key]
  17     def clear(self): self.data.clear()
  18     def copy(self):
  19         if self.__class__ is UserDict:
  20             return UserDict(self.data)
  21         import copy
  22         return copy.copy(self)
  23     def keys(self): return self.data.keys()
  24     def items(self): return self.data.items()
  25     def values(self): return self.data.values()
  26     def has_key(self, key): return self.data.has_key(key)
  27     def update(self, dict):
  28         if isinstance(dict, UserDict):
  29             self.data.update(dict.data)
  30         elif isinstance(dict, type(self.data)):
  31             self.data.update(dict)
  32         else:
  33             for k, v in dict.items():
  34                 self.data[k] = v
  35     def get(self, key, failobj=None):
  36         return self.data.get(key, failobj)
  37     def setdefault(self, key, failobj=None):
  38         if not self.data.has_key(key):
  39             self.data[key] = failobj
  40         return self.data[key]
  41     def popitem(self):
  42         return self.data.popitem()
  43     def __contains__(self, key):
  44         return key in self.data
  45     def __iter__(self):
  46         return iter(self.data)