Re: [Visualpython-users] Program 22_Gauss_2win.py brings machine to a crawl

There is a known bug (with an unknown solution) that a VPython program
with while loops but no rate statement locks up on a Mac. I've
inserted rate(50) in all while loops in that program; the program
didn't have any rate statements. You can get a working copy in the
"Lecture-demo materials" section of matterandinteractions.org.

Bruce Sherwood

On Mon, Apr 9, 2012 at 8:27 AM, Joe Heafner <hea...@gm...> wrote:
> This morning in class, my students and I found that M&I demo program 22_Gauss_2win.py brought my MacBook Air and one of our MacBooks to a crawl, barely useable. At the same time, the program executed fine on another students Windows notebook. All of the other demo programs work fine for me but this one hangs after every mouse interaction and I must wait many seconds after each hang to proceed. The two Macs are several generations apart (2006 and 2011). Mine runs Lion and the other runs Leopard. The Windows notebook runs the same Python/VPython installation that I have. Any ideas as to what the problem could be? Nothing stands out to me.
>
> Joe Heafner
> Sent from one of my Macs
>
>
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