En Wed, 21 Oct 2009 18:40:01 -0300, Andreas Balogh <balo...@gmail.com>
escribió:
Gabriel, thanks for your hint. I've managed to create an implementation
of an AttrDict passing Gabriels tests.
Any more comments about the pythonicness of this implementation?
class AttrDict(dict):
"""A dict whose items can also be accessed as member variables."""
def __init__(self, *args, **kwargs):
dict.__init__(self, *args, **kwargs)
self.__dict__ = self
def copy(self):
return AttrDict(self)
def __repr__(self):
return 'AttrDict(' + dict.__repr__(self) + ')'
@classmethod
def fromkeys(self, seq, value = None):
return AttrDict(dict.fromkeys(seq, value))
Looks fine as long as nobody uses an existing method name as a dictionary
key:
py> d = AttrDict({'name':'value'})
py> d.items()
[('name', 'value')]
py> d = AttrDict({'items': [1,2,3]})
py> d.items()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'list' object is not callable
(I should have included a test case for this issue too).
Of course, if this doesn't matter in your application, go ahead and use
it. Just be aware of the problem.
--
Gabriel Genellina
--
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