> I believe this is a known bug with 0.90.1.  Are you able to run
0.91.1?


I just upgraded and checked -- the bug still exists in 0.91.1.  I'm
afraid I don't know whether it has been fixed by r4633 or not.

Best,
   Brian 


[EMAIL PROTECTED] wrote:
> I'm doing a parameter fitting exercise, and plotting the progress as I

> do so.  I have found that repeated calls to set_text() on a text 
> object will result in an error opening a font file iff the text uses 
> TeX formatting.  (I am not using the experimental usetex feature).
> 
> I speculate that matplotlib is opening the font file anew with each 
> call to set_text and never closing it, resulting ultimately in having 
> too many files open.  Here is a brief program to reproduce this 
> behavior (WinXP, Py2.5, matplotlib 0.90.1):
> 
> 
> from pylab import figure, axes, draw, ion from numpy import array, 
> cos, abs
> ion()
> fig=figure()
> axs=axes()
> x=array(range(100))/10.0
> cosPlot=axs.plot( x, cos(x)**2, 'r' )
> powText = axs.text(0.9,0.02,r'$\alpha=$',
>
horizontalalignment='left',verticalalignment='bottom',
>                     transform = axs.transAxes)
> draw()
> for alpha in array(range(10,400))/100.0:
>     axs.lines[-1].set_ydata( abs(cos(x))**alpha)
>     powText.set_text(r'$\alpha=%.4g$'%alpha)
>     print alpha
>     draw()
>    
> 
> 
> 
> 
> Traceback (most recent call last):
>   File "delme.py", line 16, in <module>
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\pylab.py",
> line 754, in draw
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\backends\backend_tkagg.py",
> line 154, in draw
> 
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\backends\backend_agg.py",
> line 392, in draw
> 
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\figure.py",
> line 601, in draw
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\axes.py",
> line 1286, in draw
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\text.py",
> line 410, in draw
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\text.py",
> line 255, in _get_layout
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\backends\backend_agg.py",
> line 246, in get_text_width_height
> 
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\mathtext.py",
> line 1569, in __call__
>   File
> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl
> otlib\mathtext.py",
> line 578, in __init__
> RuntimeError: Could not open facefile 
> c:\Python25\lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplo
> tlib\mpl-data\fonts\ttf\cmtt10.ttf;
> Cannot_Open_Resource
> 
> 
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--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA

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