fonts_demo.py warnings

Hi the list,

I have looked for in mailing-list archive, but did not find anything
relevant.

I use matplotlib 0.87-5 and I want to try some examples concerning fonts
in .examples/.

When I run fonts_demo.py, I get the following messages :

:~...matplotlib-0.87.5/examples/{58}/> python fonts_demo.py
/usr/local/lib/python2.4/site-packages/matplotlib/font_manager.py:989:
UserWarning: Could not match cursive, normal, normal. Returning
/usr/local/lib/python2.4/site-packages/matplotlib/mpl-data/Vera.ttf
  warnings.warn('Could not match %s, %s, %s. Returning %s' % (name,
style, variant, self.defaultFont))
/usr/local/lib/python2.4/site-packages/matplotlib/font_manager.py:989:
UserWarning: Could not match fantasy, normal, normal. Returning
/usr/local/lib/python2.4/site-packages/matplotlib/mpl-data/Vera.ttf
  warnings.warn('Could not match %s, %s, %s. Returning %s' % (name,
style, variant, self.defaultFont))
/usr/local/lib/python2.4/site-packages/matplotlib/font_manager.py:989:
UserWarning: Could not match sans-serif, italic, normal. Returning
/usr/local/lib/python2.4/site-packages/matplotlib/mpl-data/Vera.ttf
  warnings.warn('Could not match %s, %s, %s. Returning %s' % (name,
style, variant, self.defaultFont))

What am I doing wrong ?

In fact, all fonts displayed in the window are the same.

Any suggestion ?

Cheers,

PS : python 2.4, freetype-2.1.7-6, libpng-1.2.8 on a debian sarge linux box.

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