Am I stupid or is 'assert' broken in Python 2.5??
Christophe
chris.cavalaria at free.fr
Wed Dec 6 09:41:25 EST 2006
antred a écrit :
> I've noticed something odd in Python 2.5, namely that the 2 argument
> version of 'assert' is broken. Or at least it seems that way to me.
>
> Run the following code in your Python interpreter:
>
> myString = None
>
> assert( myString, 'The string is either empty or set to the None
> type!' ) assert( myString )
>
>
>
> You'll notice that the first assert doesn't do anything, whereas the
> second assert correctly recognizes that myString does not evaluate to
> true. That doesn't seem right. Surely Python should have raised an
> assertion error on the first assert statement, right??
That behaviour has been present in Python for a long time. Just know
that assert is NOT a function, and thus it doesn't require parenthesis (
just the same as print doesn't require them ) Try without them and it'll
work.
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