[Bug 394502] Re: umlauts cause KeyError

[gvard]

I have the same bug, but with cyrillic letter "я" (KeyError: 255).
Code to reproduce:

from matplotlib import rc
rc('text', usetex=True)
rc('text.latex',unicode=True)
rc('text.latex',preamble='\usepackage[utf8]{inputenc}')
rc('text.latex',preamble='\usepackage[russian]{babel}')
pyplot.title(u"багряный месяц") # just exaple of using this letter

It also reproduce with the code described in bug.
So, the "stupid" recipe to remove this error is just place "buggy" lines into try..except. This seems correct, if you have other, non-buggy letters in unicode string.

Here is the patch:

--- dviread.py  2009-08-01 23:15:08.000000000 +0400
+++ /usr/lib/python2.6/site-packages/matplotlib/dviread.py      2009-09-15 17:36:10.000000000 +0400
@@ -88,8 +88,13 @@ class Dvi(object):
                 e = 0           # zero depth
             else:               # glyph
                 x,y,font,g,w = elt
-                h = _mul2012(font._scale, font._tfm.height[g])
-                e = _mul2012(font._scale, font._tfm.depth[g])
+                try:
+                    h = _mul2012(font._scale, font._tfm.height[g])
+                    e = _mul2012(font._scale, font._tfm.depth[g])
+                except KeyError:
+                    print "Exception in dviread.py! g =", g
+                    h = 0
+                    e = 0

-- 
umlauts cause KeyError
https://bugs.launchpad.net/bugs/394502
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