Assignment and comparison in one statement

[Carl Banks]

On May 23, 6:59 pm, Johannes Bauer <dfnsonfsdu... at gmx.de> wrote:
> Hello group,
>
> I'm just starting with Python and am extremely unexperienced with it so
> far. Having a strong C/C++ background, I wish to do something like
>
> if (q = getchar()) {
>         printf("%d\n", q);
>
> }
>
> or translated to Python:
>
> if (p = myfunction()):
>         print p
>
> However, this "assignment and comparison" is not working. What's the
> "Python way" of doing this kind of thing?


p = myfunction()
if p:
    print p

(I recommend doing it this way in C, too.)

For the case where you want to do this in an elif-clause, look for the
recent thread "C-like assignment expression?" which list some
workarounds.  Or just Google this newsgroup for "assignment
expression".  It's one of few minor irritating things in Python
syntax.


Carl Banks