[visionegg] Re: error: OpenGL.ctypes

Hello Andrew,

That makes sense. Thank you very much for your help. Now I have downloaded the 
demos and I`m able to run them. Yes, it was written that I have to download the 
demos separately, but somehow this detail escape my attention... Sorry.

Best,
Iliya

--- On Sun, 2/15/09, Andrew Straw <astraw@xxxxxxxxxxx> wrote:
From: Andrew Straw <astraw@xxxxxxxxxxx>
Subject: [visionegg] Re: error: OpenGL.ctypes
To: visionegg@xxxxxxxxxxxxx
Date: Sunday, February 15, 2009, 1:25 AM

OK, what you have downloaded and installed is the Vision Egg library.
What you need to do now is to get the Vision Egg demos. As it says at
http://www.visionegg.org/Download%20and%20Install

> If you've installed the Windows .exe installer or the Mac OS X .dmg
installer, you don't have the demo programs. These are available with the
full source code in the "demo" directory.

Thus, you'll need to download the source code to the VE to get the
demos. You should also be able to get that at SourceForge.

(I wish there was an easier way to do this, but there's no good,
standard way in python do ship a bunch of demo scripts with a library.)

-Andrew

ilia ivanov wrote:
> I downloaded it from:
>
http://freefr.dl.sourceforge.net/sourceforge/visionegg/visionegg-1.1.2.win32-py2.5.exe
> and then double clicked the exe. The installer found the Python25
> install directory and placed the VisionEgg into 
> C:\Python25\Lib\site-packages\VisionEgg.
> 
> 1) In the shell prompt the results are:
> 
> C:\Python25\Lib\site-packages\VisionEgg>python
multi_stim.py
> python: can't open file 'multi_stim.py': [Errno 2] No such
file or directory
>  Still there I tried:
> C:\Python25\Lib\site-packages\VisionEgg>python
gratings.py
> Just nothing happened.
> 
> 2) Via Python console I got:
> File "<stdin>", line 1, in <module>
> Name error: name 'os' is not defined
> 
> Really no idea what might be wrong.
> 
> Iliya
> 
> --- On *Sun, 2/15/09, Andrew Straw /<astraw@xxxxxxxxxxx>/* wrote:
> 
>     From: Andrew Straw <astraw@xxxxxxxxxxx>
>     Subject: [visionegg] Re: error: OpenGL.ctypes
>     To: visionegg@xxxxxxxxxxxxx
>     Date: Sunday, February 15, 2009, 12:17 AM
> 
>     ilia ivanov wrote:
>     > Hi Andrew,
>     > 
>     > If I double click I see the Python console to show up for a sec
and then
>     > nothing. This is the reason to write the code in the console
mode, so I
>     > can track the point at which I get an error. So far I`m stacked
at the
>     > 
>     > import _vegl
>     >> Traceback (most recent call last):
>     >>   File "<stdin>", line 1, in <module>
>     >> ImportError: No module named _vegl
>     > 
>     > Does this
>      mean that the VisionEgg is incompatible with win32?
> 
>     VE is compatible with win32. If you're getting an error on double
click
>     it means something is going wrong. You can try one of two things:
> 
>     1) keep that error around longer. Open a shell console:
Start->Run->type
>     "cmd.exe". Then "cd
>     C:\Where\the\VE\demos\are". Then "python
>     multi_stim.py".
> 
>     2) Run the demos from within the Python console: type
>     "os.chdir(r'C:\path\to\VE\demos')"
then type
>     "execfile('multi_stim.py')"
>     when in the VE demos directory and report back the error you see.
> 
>     The problem you're encountering is that _vegl is an internal
module to
>     the VisionEgg and you shouldn't import it directly.
> 
>     How did you install the Vision Egg?
> 
>     -- 
>     Dr. Andrew D. Straw
>     California Institute of Technology
>     http://www.its.caltech.edu/~astraw/
>     ======================================
>     The Vision Egg mailing list
>     Archives:
>      http://www.freelists.org/archives/visionegg
>     Website: http://www.visionegg.org/mailinglist.html
> 
> 


-- 
Dr. Andrew D. Straw
California Institute of Technology
http://www.its.caltech.edu/~astraw/
======================================
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