I have a dict subclass that associates extra data with each value of the
key/value items:
class MyDict(dict):
def __setitem__(self, key, value):
super(MyDict, self).__setitem__(key, (value, "extra_data"))
def __getitem__(self, key):
return super(MyDict, self).__getitem__(key)[0]
# plus extra methods
This works fine for item access, updates, etc:
>>> d = MyDict()
>>> d[0] = 'a'; d[1] = 'b'
>>> d[1]
'b'
But if I try to create a regular dict from this, dict() doesn't call my
__getitem__ method:
>>> dict(d)
{0: ('a', 'extra_data'), 1: ('b', 'extra_data')}
instead of {0: 'a', 1: 'b'} as I expected.
How can I fix this?
--
Steven
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