[visionegg] Re: Terminating a While Loop
- From: "Maher, Jeffrey" <jeffrey.maher@xxxxxxxxxxxxx>
- To: <visionegg@xxxxxxxxxxxxx>
- Date: Tue, 17 Jul 2007 13:07:48 -0500
Mark,
Alright I tried this, and I seemed to get some slightly better results, it
didnt fail as quickly. But when I looked into my log of errors, it now says
that the p in the p.go is not defined. Heres the exact error:
File
"C:\Python22\VisionEgg\visionegg-0.9.9-demo\demo\project\stim_project4c.py",
line 614, in ?
p.go()
NameError: name 'p' is not defined
I havent had a problem with it before, when it was in the while loop. Any
suggestions as to why its becoming a problem now? Sorry if this is a stupid
mistake on my part, but any advice that you may have would be much appreciated.
-Jeff
________________________________
From: visionegg-bounce@xxxxxxxxxxxxx on behalf of Mark Halko
Sent: Tue 7/17/2007 12:52 PM
To: visionegg@xxxxxxxxxxxxx
Subject: [visionegg] Re: Terminating a While Loop
How about something as simple as:
quit_now = False
pause = False
while not quit_now:
if not pause :
p.go()
for event in pygame.event.get():
if event.type == pygame.locals.KEYDOWN :
if event.key == pygame.locals.K_ESCAPE :
quit_now = True
if event.key == pygame.locals.K_SPACE :
pause = not pause
You could also set quit_now to True to quit if you reach some
criterion level from your experiment.
Mark
On Jul 17, 2007, at 1:14 PM, Maher, Jeffrey wrote:
> Hello,
> Im currently working on the following code trying to determine a
> way to exit a while loop before the criteria is satisfied.
>
> i=0
> while i<eval(self.number.get()):
> p.go
> i=i+1
>
> My goal is to set it to a certain key that will either pause the
> program, and then resume it once pressed again, or have it exit the
> program all-together, either/or would be acceptable.
>
> I had tried setting it to the "esc" key by doing the following code
> that I found while searching for an answer:
> if msvcrt.kbhit() and msvcrt.getch() == chr(27):
> break
> But that just causes the program to fail to start up.
> I have also tried:
> for event in pygame.event.get():
> if event.type == pygame.locals.KEYDOWN:
> if event.key == pygame.locals.K_ESCAPE:
> sys.exit()
> But this again just causes the program to fail to start up.
>
> Any suggestions would be greatly appreciated.
> -Jeff
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