0 + not 0

Chris Angelico rosuav at gmail.com
Sat Jul 11 12:38:52 CEST 2015


On Sat, Jul 11, 2015 at 8:26 PM, candide <c.candide at laposte.net> wrote:
>>>> 0 + not 0
>   File "<stdin>", line 1
>     0 + not 0
>           ^
> SyntaxError: invalid syntax
>>>>
>
>
> What is syntactically wrong with 0 + not 0?

I'm actually not sure why this can't be handled. Possibly it's a
limitation of the parser. Certainly 0 + (not 0) works just fine. This
suggests that the exponentiation operator may have been special-cased
to cope with this:

https://docs.python.org/3/reference/expressions.html#id21

So maybe there's just no corresponding special case for this - which,
I have to say, is not exactly a common construct.

ChrisA


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