Warning of missing side effects

[Dave Angel]

Arnaud Delobelle wrote:
> Dave Angel <davea at ieee.org> writes:
>
>   
>> Python allows multiple assignments in the same statement, but they're
>> all to the same object.
>>     
>
> Unless they are to different objects:
>
>     a, b = 1, 2
>
>   
You're right, of course.  I was referring to the multiple '=' form, and 
my statement was too general to be correct.

a = b = 42       is legal
a = (b=42) + 1      is not