Package Scientific :: Module DictWithDefault :: Class DictWithDefault

Class DictWithDefault

UserDict.UserDict --+
                    |
                   DictWithDefault

Dictionary with default values

Instances of this class act like standard Python dictionaries, except that they return a *copy* of |default| for a key that has no associated value.

Instance Methods

__delitem__(self, key)

__getitem__(self, key)
Returns: the associated value.

__init__(self, default)

Inherited from UserDict.UserDict: __cmp__, __contains__, __len__, __repr__, __setitem__, clear, copy, get, has_key, items, iteritems, iterkeys, itervalues, keys, pop, popitem, setdefault, update, values

Class Methods
Inherited from `UserDict.UserDict`: `fromkeys`

Method Details

delitem(self, key)
(Index deletion operator)

Overrides: UserDict.UserDict.__delitem__

getitem(self, key)
(Indexing operator)

Parameters:

key - the key whose associated value is requested

Returns:

the associated value. If none is defined, the return value is a copy of the default value.

Overrides: UserDict.UserDict.__getitem__

init(self, default)
(Constructor)

Parameters:

default - the default value that is returned for a key that has no associated value

Overrides: UserDict.UserDict.__init__

Class DictWithDefault

__delitem__(self, key) (Index deletion operator)

__getitem__(self, key) (Indexing operator)

__init__(self, default) (Constructor)

delitem(self, key)
(Index deletion operator)

getitem(self, key)
(Indexing operator)

init(self, default)
(Constructor)