_Prevent_ dynamic attribute addition?
Neil Schemenauer
nas at python.ca
Fri Aug 30 13:37:23 EDT 2002
Robert Oschler wrote:
> Is there a way to make a class 'non-modifiable', or am I just not
> understanding something here?
The new 2.2 __slots__ feature might help. For example:
>>> class A(object):
... __slots__ = ['foo']
...
>>> a = A()
>>> a.foo = 1
>>> a.foo
1
>>> a.bar = 2
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: 'A' object has no attribute 'bar'
HTH,
Neil
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