> I just to check it in the python shell and it's correct. > Then the problem is by iPython that I was testing it from there. yes, iPython has a bug like that https://bugs.launchpad.net/ipython/+bug/339642 -- дамјан ( http://softver.org.mk/damjan/ ) A: Because it reverses the logical flow of conversation. Q: Why is top posting frowned upon?