MRAB <goo...@mrabarnett.plus.com> writes:
> Filip Gruszczyński wrote:
> > Traceback (most recent call last):
> > File "<stdin>", line 1, in <module>
> > AttributeError: A instance has no attribute 'foo'
> >
> > Why is it so and how may still delete it?
> >
> 'a' is an instance of class A. You're trying to delete 'foo' from
> the instance.
To answer the second question: since ‘foo’ is an attribute of the
class ‘A’, you can delete the attribute from the class.
>>> class A(object):
... def foo(self):
... pass
...
>>> a = A()
>>> 'foo' in dir(a)
True
>>> del A.foo
>>> 'foo' in dir(a)
False
--
\ “If you don't know what your program is supposed to do, you'd |
`\ better not start writing it.” —Edsger W. Dijkstra |
_o__) |
Ben Finney
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