[Python-Dev] why do we allow this syntax?

Chris Angelico rosuav at gmail.com
Fri Feb 8 16:42:57 CET 2013


On Sat, Feb 9, 2013 at 2:39 AM, Chris Withers <chris at simplistix.co.uk> wrote:
> Hi All,
>
> Just had a bit of an embarrassing incident in some code where I did:
>
> sometotal =+ somevalue
>
> I'm curious why this syntax is allowed? I'm sure there are good reasons, but
> thought I'd ask...

For the same reason that you can negate a value with:

sometotal = -somevalue

The unary + and - operators are seldom problematic.

ChrisA


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