matplotlib-users Mailing List for matplotlib

On Mon, 2004-11-22 at 13:48, John Hunter wrote:
> >>>>> "Gary" == Gary  <pa...@in...> writes:
> 
>     Gary> This application has requested the Runtime to terminate it
>     Gary> in an unusual way.  Please contact the application's support
>     Gary> team for more information.
> 
>     Gary> C:\Python23\Lib\site-packages\matplotlib\examples>
> 
> Hi Gary, the good news is that I could replicate the bug on XP and the
> better news is that I could fix it :-)

I looked at this but couldn't solve it... way to go John! 

Cheers,
Todd

>>>>> "Gary" == Gary  <pa...@in...> writes:

    Gary> This application has requested the Runtime to terminate it
    Gary> in an unusual way.  Please contact the application's support
    Gary> team for more information.

    Gary> C:\Python23\Lib\site-packages\matplotlib\examples>

Hi Gary, the good news is that I could replicate the bug on XP and the
better news is that I could fix it :-)

It looks like a bug in the anim_tk script and not in matplotlib
proper.  Basically, anim_tk never calls the tk mainloop.  Why this
works under linux and not windows is not clear to me.  The trick is to
start the tk mainloop and use the tk after handler to run a command
after x milliseconds.  So I rewrote the example to do the animation in
a loop, and used the after command to start this function after the
mainloop is launched.

If you have any additional trouble, you may want to try turning off 

  tk.window_focus   : False    # Maintain shell focus for TkAgg

in your rc file.

Hope this helps!
JDH

#!/usr/bin/env python2.3

import matplotlib
matplotlib.use('TkAgg')
import matplotlib.matlab

#import Tkinter as Tk
import matplotlib.numerix as numerix
fig = matplotlib.matlab.figure(1)
ind = numerix.arange(60)

x_tmp=[]
for i in range(100):
    x_tmp.append(numerix.sin((ind+i)*numerix.pi/15.0))

X=numerix.array(x_tmp)


lines = matplotlib.matlab.plot(X[:,0],'o')

manager = matplotlib.matlab.get_current_fig_manager()

def updatefig(*args):
    updatefig.count += 1
    lines[0].set_ydata(X[:,updatefig.count%60])
    manager.canvas.draw()
    return updatefig.count
updatefig.count=-1

def run(*args):

    import time
    tstart = time.time()
    while 1:
        cnt = updatefig()
        if cnt==100: break
        print 'elapsed', 100.0/(time.time() - tstart)
    
import Tkinter as Tk
manager.window.after(10, run)
manager.show()
Tk.mainloop()

John Hunter wrote:

>>>>>>"Gary" == Gary  <pa...@in...> writes:
>>>>>>            
>>>>>>
>
>    Gary> Thanks ... so it's either me or WinXP.  I gave it a try on
>    Gary> my other WinXP machine.  Same thing.  No dice.
>
>    Gary> Can someone confirm that anim_tk.py runs (or doesn't) on
>    Gary> WinXP / matplotlib 0.64 ??
>
>I can't test this under windows XP right now (I can tomorrow).  But
>how are you running your script (double clicknig, from a shell, from
>within an IDE?
>
>What does 
>
>  c:> python anim_tk.py --verbose-helpful report?
>
>I searched the matplotlib-users archives at
>http://sourceforge.net/mailarchive/forum.php?forum_id=33405 for
>PyEval_RestoreThread.  This has cropped up a few times before on
>windows (including a September post from you also on anim_tk which did
>not appear to be resolved).  
>
>My usual first guess when people get this message is that they are
>trying to run matplotlib from within a GUI IDE and are getting an IDE
>conflict, which is why I asked you to test from the command shell.
>Let me know the results of the tests above, because I'd like to track
>this one down.
>
>JDH
>
>  
>

John,

No IDE or double clicks.   Straight from the command line.

C:\Python23\Lib\site-packages\matplotlib\examples>python anim_tk.py 
--verbose-helpful
matplotlib data path C:\PYTHON23\share\matplotlib
loaded rc file C:\PYTHON23\share\matplotlib\.matplotlibrc
matplotlib version 0.64
verbose.level helpful
interactive is False
numerix Numeric 23.0
font search path ['C:\\PYTHON23\\share\\matplotlib']
loaded ttfcache file C:\Documents and Settings\Gary\.ttffont.cache
matplotlib data path C:\PYTHON23\share\matplotlib
loaded rc file C:\PYTHON23\share\matplotlib\.matplotlibrc
matplotlib version 0.64
verbose.level helpful
interactive is False
backend TkAgg version 8.4
elapsed 6.0779188952
Fatal Python error: PyEval_RestoreThread: NULL tstate

This application has requested the Runtime to terminate it in an unusual 
way.
Please contact the application's support team for more information.

C:\Python23\Lib\site-packages\matplotlib\examples>

>>>>> "Gary" == Gary  <pa...@in...> writes:

    Gary> Thanks ... so it's either me or WinXP.  I gave it a try on
    Gary> my other WinXP machine.  Same thing.  No dice.

    Gary> Can someone confirm that anim_tk.py runs (or doesn't) on
    Gary> WinXP / matplotlib 0.64 ??

I can't test this under windows XP right now (I can tomorrow).  But
how are you running your script (double clicknig, from a shell, from
within an IDE?

What does 

  c:> python anim_tk.py --verbose-helpful report?

I searched the matplotlib-users archives at
http://sourceforge.net/mailarchive/forum.php?forum_id=33405 for
PyEval_RestoreThread.  This has cropped up a few times before on
windows (including a September post from you also on anim_tk which did
not appear to be resolved).  

My usual first guess when people get this message is that they are
trying to run matplotlib from within a GUI IDE and are getting an IDE
conflict, which is why I asked you to test from the command shell.
Let me know the results of the tests above, because I'd like to track
this one down.

JDH