Postfix/Prefix Operators (++,--)

[Joshua Marshall]

Peter Hansen <peter at engcorp.com> wrote:
...
>> ++/-- can be added to Python, and could act in a way that wouldn't
>> surprise C or Java programmers.  There really isn't any conceptual
>> difference between references to immutabe ints and C/Java primitive
>> ints.

> How would the error generated when the C or Java programmer wrote 
> the following code not surprise him or her?

>   c = 1
>   a = c++

I wouldn't design ++ to error in this case:

  >>> c = 1
  >>> a = c++
  >>> a
  1
  >>> c
  2