newbie operator question

I'm new to python, and part of my learning process is looking at the code of more experienced python programmers. One thing I see quite often that appears strange is this idiom:

lineno = lineno + 1

Is there a reason why is should not be written:

lineno += 1

This seems to work fine in v2.2, Was it not available in previous versions, or is there something I'm missing?

Yep, that's it. It was not available in Python 1.x versions.

Hi Vpopper.

The syntax is a little different but it accomplishes the same thing. ( Adding one to the value on the left ( the 'lvalue' ) ).

You can quite easily add, subtract, etc. almost any value:

total += 5

total -= 5

total *= 15

Hope this helps,

-Caitlin.