lallous a écrit :
Hello
class __object(object):
<ot>
the convention for reusing reserved words as identifiers is to *suffix*
them with a single underscore, ie:
class object_(object):
#
</ot>
def __getitem__(self, idx):
return getattr(self, idx)
class __dobject(object): pass
x = __object()
setattr(x, "0", "hello")
print x["0"]
y = __dobject(a=1,b=2)
setattr(y, "0", "world")
#print y["0"]
How can I, given an object of instance "__dobject", add to that instance
a __getitem__ method so that I can type:
print y["0"]
Adding per-instance methods won't work for __magic_methods__. But you
could use the Decorator pattern here:
class IndexableDecorator(object):
def __init__(self, other):
self._other = other
def __getitem__(self, idx):
return getattr(self._other, idx)
def __setattr__(self, name, value):
if name = "_other":
object.__setattr__(self, name, value)
else:
setattr(self._other, name, value)
x = IndexableDecorator(x)
NB : not tested, so it probably contains at least one obvious error !-)
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