[Python-Dev] ',' precedence in documentation

[Guido van Rossum]

 On Mon, Sep 15, 2008 at 4:49 AM, Steven D'Aprano <steve at pearwood.info> wrote:
> On Mon, 15 Sep 2008 01:55:00 pm Leif Walsh wrote:
>> On Sun, Sep 14, 2008 at 11:36 PM, Eric Smith <eric at trueblade.com>
> wrote:
>> > If we really want to change it, I think:
>> >  assert B as S
>> > is better because S is the string to report; that is, "if B is
>> > false, report the problem as the string S".
>> >
>> > 'else' implies to me what to do if you're not failing the assert,
>> > which is not the case.
>>
>> Doesn't imply that to me.  I read it as 'first you assert that B is
>> true; if not (else), you print S'.
>>
>> Personally, I like 'else' better than 'as', because 'as' seems to
>> contain the notion of assignment.
>
> I agree with Leif on both his comments. I don't particularly see the
> need to change assert, but if it has to change, I'd be perfectly happy
> with one of "assert B else S" or "assert B except S".

In private mail someone suggested the Java assert syntax:

  assert expression : expression

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)