Use hex for character code ids -- it's more consistent with how Unicode code points are usually represented.

mdboom · mdboom · commit 582084bc6adc · 2011-05-09T11:06:38.000-04:00
diff --git a/lib/matplotlib/textpath.py b/lib/matplotlib/textpath.py
@@ -50,7 +50,7 @@ def _get_char_id(self, font, ccode):
         Return a unique id for the given font and character-code set.
         """
         ps_name = font.get_sfnt()[(1,0,0,6)]
-        char_id = urllib.quote('%s-%d' % (ps_name, ccode))
+        char_id = urllib.quote('%s-%x' % (ps_name, ccode))
         return char_id
 
     def _get_char_id_ps(self, font, ccode):
