"Diez B. Roggisch" <[EMAIL PROTECTED]> writes:
> stef mientki schrieb:
> > What should I do to the same simple test for existance ?
>
> Use isinstance(obj, type).
No, that's *far* more specific than "does it exist", and will give
false negatives.
Much better is::
foo = None
foo = do_something_to_get_instance()
# ...
if foo is not None:
# foo was bound to an instance correctly
Even better is just to use the object, and if it's not what was
expected, catch the exception at a level that knows what to do about
it.
--
\ "At my lemonade stand I used to give the first glass away free |
`\ and charge five dollars for the second glass. The refill |
_o__) contained the antidote." -- Emo Philips |
Ben Finney
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