Jouni K. Seppänen wrote:
Michael Droettboom <md...@stsci.edu> writes:
when running usetex_fonteffects.py [...]
TypeError: coercing to Unicode: need string or buffer, NoneType found
-> file = open(input, 'rb')
Perhaps your TeX installation doesn't have the font. If you run
"kpsewhich utmr8a.pfb", what do you get? If it does return something,
could you run the example with --verbose-debug?
> kpsewhich utmr8a.pfb
/usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb
The output of "python usetex_texteffects.py --verbose-debug" is attached.
Mike
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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Using fontManager instance from /home/mdroe/.matplotlib/fontList.cache
backend Agg version v2.2
Found dvipng version 1.9
Dvi: /home/mdroe/.matplotlib/tex.cache/c5383a18897d5b8dd569836a32b6a2df.dvi
Dvi._xxx: encountered special: ps::-32891 -32891 32891 32891 568190 163968
611836
Dvi._xxx: encountered special: !/prev...@version(11.84)def
Dvi._xxx: encountered special: !userdict begin/preview-bop-level 0
def/bop-hook{/preview-bop-level dup load dup 0 le{/isls false def/vsize 792
def/hsize 612 def}if 1 add store}bind def/eop-hook{/preview-bop-level dup load
dup 0 gt{1 sub}if store}bind def end
Dvi._xxx: encountered special: !/prev...@tightpage true def (compatibility
PostScript comment for dvipng<=1.5
Dvi._xxx: encountered special: !userdict begin/bop-hook{7{currentfile token
not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2 copy gt{exch}if 4 2 roll
neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0 lt{pop 0}if}ifelse 720
add exch 720 add 3 1 roll 4{5 -1 roll add 4 1 roll}repeat <</PageSize[5 -1 roll
6 index sub 5 -1 roll 5 index sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0
ge{neg}if exch}forall]>>setpagedevice//bop-hook exec}bind def end
Dvi._xxx: encountered special: !userdict (some extra code to avoid dvipng>=1.6
unknown special: 7{currentfile token not{stop}if 65781.76 div })) pop
Dvi._xxx: encountered special: !userdict begin/bop-hook{preview-bop-level 0
le{7{currentfile token not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2
copy gt{exch}if 4 2 roll neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0
lt{pop 0}if}ifelse 720 add exch 720 add 3 1 roll 4{5 -1 roll add 4 1
roll}repeat <</PageSize[5 -1 roll 6 index sub 5 -1 roll 5 index
sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0 ge{neg}if
exch}forall]>>setpagedevice}if//bop-hook exec}bind def end
find_tex_file(phvr7t.tfm): ['kpsewhich', 'phvr7t.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/helvetic/phvr7t.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/helvetic/phvr7t.tfm
lh=18, bc=0, ec=170, nw=17, nh=16, nd=16
find_tex_file(phvr7t.vf): ['kpsewhich', 'phvr7t.vf']
find_tex_file result: /usr/share/texmf/fonts/vf/adobe/helvetic/phvr7t.vf
Dvi: /usr/share/texmf/fonts/vf/adobe/helvetic/phvr7t.vf
find_tex_file(phvr8r.tfm): ['kpsewhich', 'phvr8r.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/helvetic/phvr8r.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/helvetic/phvr8r.tfm
lh=18, bc=1, ec=255, nw=30, nh=16, nd=16
find_tex_file(phvr8r.vf): ['kpsewhich', 'phvr8r.vf']
find_tex_file result:
Dvi._xxx: encountered special: Warning: missing glyph `Gamma'
Dvi._xxx: encountered special: Warning: missing glyph `Delta'
Dvi._xxx: encountered special: Warning: missing glyph `Theta'
Dvi._xxx: encountered special: Warning: missing glyph `Lambda'
Dvi._xxx: encountered special: Warning: missing glyph `Xi'
Dvi._xxx: encountered special: Warning: missing glyph `Pi'
Dvi._xxx: encountered special: Warning: missing glyph `Sigma'
Dvi._xxx: encountered special: Warning: missing glyph `Upsilon'
Dvi._xxx: encountered special: Warning: missing glyph `Phi'
Dvi._xxx: encountered special: Warning: missing glyph `Psi'
Dvi._xxx: encountered special: Warning: missing glyph `Omega'
Dvi._xxx: encountered special: Warning: missing glyph `dotlessj'
Dvi._xxx: encountered special: Warning: missing glyph `lslashslash'
Dvi: /home/mdroe/.matplotlib/tex.cache/7a59d423c023363021a71b5673421da6.dvi
find_tex_file(ptmr8r.tfm): ['kpsewhich', 'ptmr8r.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/times/ptmr8r.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/times/ptmr8r.tfm
lh=18, bc=1, ec=255, nw=34, nh=16, nd=16
find_tex_file(ptmr8r.vf): ['kpsewhich', 'ptmr8r.vf']
find_tex_file result:
Dvi: /home/mdroe/.matplotlib/tex.cache/7a59d423c023363021a71b5673421da6.dvi
Assigning font /F1 = ptmr8r
find_tex_file(pdftex.map): ['kpsewhich', 'pdftex.map']
find_tex_file result: /usr/share/texmf/dvips/config/pdftex.map
find_tex_file(8r.enc): ['kpsewhich', '8r.enc']
find_tex_file result: /usr/share/texmf/dvips/psnfss/8r.enc
Dvi: /home/mdroe/.matplotlib/tex.cache/c5383a18897d5b8dd569836a32b6a2df.dvi
Dvi._xxx: encountered special: ps::-32891 -32891 32891 32891 568190 163968
611836
Dvi._xxx: encountered special: !/prev...@version(11.84)def
Dvi._xxx: encountered special: !userdict begin/preview-bop-level 0
def/bop-hook{/preview-bop-level dup load dup 0 le{/isls false def/vsize 792
def/hsize 612 def}if 1 add store}bind def/eop-hook{/preview-bop-level dup load
dup 0 gt{1 sub}if store}bind def end
Dvi._xxx: encountered special: !/prev...@tightpage true def (compatibility
PostScript comment for dvipng<=1.5
Dvi._xxx: encountered special: !userdict begin/bop-hook{7{currentfile token
not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2 copy gt{exch}if 4 2 roll
neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0 lt{pop 0}if}ifelse 720
add exch 720 add 3 1 roll 4{5 -1 roll add 4 1 roll}repeat <</PageSize[5 -1 roll
6 index sub 5 -1 roll 5 index sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0
ge{neg}if exch}forall]>>setpagedevice//bop-hook exec}bind def end
Dvi._xxx: encountered special: !userdict (some extra code to avoid dvipng>=1.6
unknown special: 7{currentfile token not{stop}if 65781.76 div })) pop
Dvi._xxx: encountered special: !userdict begin/bop-hook{preview-bop-level 0
le{7{currentfile token not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2
copy gt{exch}if 4 2 roll neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0
lt{pop 0}if}ifelse 720 add exch 720 add 3 1 roll 4{5 -1 roll add 4 1
roll}repeat <</PageSize[5 -1 roll 6 index sub 5 -1 roll 5 index
sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0 ge{neg}if
exch}forall]>>setpagedevice}if//bop-hook exec}bind def end
Dvi: /home/mdroe/.matplotlib/tex.cache/af2bfdc5788d0122a5bcad782c83de15.dvi
find_tex_file(ptmri8r.tfm): ['kpsewhich', 'ptmri8r.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/times/ptmri8r.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/times/ptmri8r.tfm
lh=18, bc=1, ec=255, nw=33, nh=16, nd=16
find_tex_file(ptmri8r.vf): ['kpsewhich', 'ptmri8r.vf']
find_tex_file result:
Dvi: /home/mdroe/.matplotlib/tex.cache/af2bfdc5788d0122a5bcad782c83de15.dvi
Assigning font /F2 = ptmri8r
find_tex_file(8r.enc): ['kpsewhich', '8r.enc']
find_tex_file result: /usr/share/texmf/dvips/psnfss/8r.enc
Dvi: /home/mdroe/.matplotlib/tex.cache/c5383a18897d5b8dd569836a32b6a2df.dvi
Dvi._xxx: encountered special: ps::-32891 -32891 32891 32891 568190 163968
611836
Dvi._xxx: encountered special: !/prev...@version(11.84)def
Dvi._xxx: encountered special: !userdict begin/preview-bop-level 0
def/bop-hook{/preview-bop-level dup load dup 0 le{/isls false def/vsize 792
def/hsize 612 def}if 1 add store}bind def/eop-hook{/preview-bop-level dup load
dup 0 gt{1 sub}if store}bind def end
Dvi._xxx: encountered special: !/prev...@tightpage true def (compatibility
PostScript comment for dvipng<=1.5
Dvi._xxx: encountered special: !userdict begin/bop-hook{7{currentfile token
not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2 copy gt{exch}if 4 2 roll
neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0 lt{pop 0}if}ifelse 720
add exch 720 add 3 1 roll 4{5 -1 roll add 4 1 roll}repeat <</PageSize[5 -1 roll
6 index sub 5 -1 roll 5 index sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0
ge{neg}if exch}forall]>>setpagedevice//bop-hook exec}bind def end
Dvi._xxx: encountered special: !userdict (some extra code to avoid dvipng>=1.6
unknown special: 7{currentfile token not{stop}if 65781.76 div })) pop
Dvi._xxx: encountered special: !userdict begin/bop-hook{preview-bop-level 0
le{7{currentfile token not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2
copy gt{exch}if 4 2 roll neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0
lt{pop 0}if}ifelse 720 add exch 720 add 3 1 roll 4{5 -1 roll add 4 1
roll}repeat <</PageSize[5 -1 roll 6 index sub 5 -1 roll 5 index
sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0 ge{neg}if
exch}forall]>>setpagedevice}if//bop-hook exec}bind def end
Dvi: /home/mdroe/.matplotlib/tex.cache/54dcf61710bfd2b42450c30cead58858.dvi
find_tex_file(ptmro8r.tfm): ['kpsewhich', 'ptmro8r.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/times/ptmro8r.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/times/ptmro8r.tfm
lh=18, bc=1, ec=255, nw=34, nh=16, nd=16
find_tex_file(ptmro8r.vf): ['kpsewhich', 'ptmro8r.vf']
find_tex_file result:
Dvi: /home/mdroe/.matplotlib/tex.cache/54dcf61710bfd2b42450c30cead58858.dvi
Assigning font /F3 = ptmro8r
find_tex_file(utmr8a.pfb): ['kpsewhich', 'utmr8a.pfb']
find_tex_file result: /usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb
find_tex_file(8r.enc): ['kpsewhich', '8r.enc']
find_tex_file result: /usr/share/texmf/dvips/psnfss/8r.enc
Dvi: /home/mdroe/.matplotlib/tex.cache/c5383a18897d5b8dd569836a32b6a2df.dvi
Dvi._xxx: encountered special: ps::-32891 -32891 32891 32891 568190 163968
611836
Dvi._xxx: encountered special: !/prev...@version(11.84)def
Dvi._xxx: encountered special: !userdict begin/preview-bop-level 0
def/bop-hook{/preview-bop-level dup load dup 0 le{/isls false def/vsize 792
def/hsize 612 def}if 1 add store}bind def/eop-hook{/preview-bop-level dup load
dup 0 gt{1 sub}if store}bind def end
Dvi._xxx: encountered special: !/prev...@tightpage true def (compatibility
PostScript comment for dvipng<=1.5
Dvi._xxx: encountered special: !userdict begin/bop-hook{7{currentfile token
not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2 copy gt{exch}if 4 2 roll
neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0 lt{pop 0}if}ifelse 720
add exch 720 add 3 1 roll 4{5 -1 roll add 4 1 roll}repeat <</PageSize[5 -1 roll
6 index sub 5 -1 roll 5 index sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0
ge{neg}if exch}forall]>>setpagedevice//bop-hook exec}bind def end
Dvi._xxx: encountered special: !userdict (some extra code to avoid dvipng>=1.6
unknown special: 7{currentfile token not{stop}if 65781.76 div })) pop
Dvi._xxx: encountered special: !userdict begin/bop-hook{preview-bop-level 0
le{7{currentfile token not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2
copy gt{exch}if 4 2 roll neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0
lt{pop 0}if}ifelse 720 add exch 720 add 3 1 roll 4{5 -1 roll add 4 1
roll}repeat <</PageSize[5 -1 roll 6 index sub 5 -1 roll 5 index
sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0 ge{neg}if
exch}forall]>>setpagedevice}if//bop-hook exec}bind def end
Dvi: /home/mdroe/.matplotlib/tex.cache/01db459b64bc8c1a8a240aa507c07c07.dvi
find_tex_file(ptmr8rn.tfm): ['kpsewhich', 'ptmr8rn.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/times/ptmr8rn.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/times/ptmr8rn.tfm
lh=17, bc=1, ec=255, nw=34, nh=16, nd=16
find_tex_file(ptmr8rn.vf): ['kpsewhich', 'ptmr8rn.vf']
find_tex_file result:
Dvi: /home/mdroe/.matplotlib/tex.cache/01db459b64bc8c1a8a240aa507c07c07.dvi
Assigning font /F4 = ptmr8rn
find_tex_file(utmr8a.pfb): ['kpsewhich', 'utmr8a.pfb']
find_tex_file result: /usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb
find_tex_file(8r.enc): ['kpsewhich', '8r.enc']
find_tex_file result: /usr/share/texmf/dvips/psnfss/8r.enc
Dvi: /home/mdroe/.matplotlib/tex.cache/c5383a18897d5b8dd569836a32b6a2df.dvi
Dvi._xxx: encountered special: ps::-32891 -32891 32891 32891 568190 163968
611836
Dvi._xxx: encountered special: !/prev...@version(11.84)def
Dvi._xxx: encountered special: !userdict begin/preview-bop-level 0
def/bop-hook{/preview-bop-level dup load dup 0 le{/isls false def/vsize 792
def/hsize 612 def}if 1 add store}bind def/eop-hook{/preview-bop-level dup load
dup 0 gt{1 sub}if store}bind def end
Dvi._xxx: encountered special: !/prev...@tightpage true def (compatibility
PostScript comment for dvipng<=1.5
Dvi._xxx: encountered special: !userdict begin/bop-hook{7{currentfile token
not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2 copy gt{exch}if 4 2 roll
neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0 lt{pop 0}if}ifelse 720
add exch 720 add 3 1 roll 4{5 -1 roll add 4 1 roll}repeat <</PageSize[5 -1 roll
6 index sub 5 -1 roll 5 index sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0
ge{neg}if exch}forall]>>setpagedevice//bop-hook exec}bind def end
Dvi._xxx: encountered special: !userdict (some extra code to avoid dvipng>=1.6
unknown special: 7{currentfile token not{stop}if 65781.76 div })) pop
Dvi._xxx: encountered special: !userdict begin/bop-hook{preview-bop-level 0
le{7{currentfile token not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2
copy gt{exch}if 4 2 roll neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0
lt{pop 0}if}ifelse 720 add exch 720 add 3 1 roll 4{5 -1 roll add 4 1
roll}repeat <</PageSize[5 -1 roll 6 index sub 5 -1 roll 5 index
sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0 ge{neg}if
exch}forall]>>setpagedevice}if//bop-hook exec}bind def end
Dvi: /home/mdroe/.matplotlib/tex.cache/b99746c4461071bfa989a427278eca3b.dvi
find_tex_file(ptmrr8re.tfm): ['kpsewhich', 'ptmrr8re.tfm']
find_tex_file result: /usr/share/texmf/fonts/tfm/adobe/times/ptmrr8re.tfm
opening tfm file /usr/share/texmf/fonts/tfm/adobe/times/ptmrr8re.tfm
lh=17, bc=1, ec=255, nw=34, nh=16, nd=16
find_tex_file(ptmrr8re.vf): ['kpsewhich', 'ptmrr8re.vf']
find_tex_file result:
Dvi: /home/mdroe/.matplotlib/tex.cache/b99746c4461071bfa989a427278eca3b.dvi
Assigning font /F5 = ptmrr8re
find_tex_file(utmr8a.pfb): ['kpsewhich', 'utmr8a.pfb']
find_tex_file result: /usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb
find_tex_file(8r.enc): ['kpsewhich', '8r.enc']
find_tex_file result: /usr/share/texmf/dvips/psnfss/8r.enc
Dvi: /home/mdroe/.matplotlib/tex.cache/9047c8b350715aee5575be5837ef58f9.dvi
Dvi._xxx: encountered special: ps::-32891 -32891 32891 32891 681828 196761
734203
Dvi._xxx: encountered special: !/prev...@version(11.84)def
Dvi._xxx: encountered special: !userdict begin/preview-bop-level 0
def/bop-hook{/preview-bop-level dup load dup 0 le{/isls false def/vsize 792
def/hsize 612 def}if 1 add store}bind def/eop-hook{/preview-bop-level dup load
dup 0 gt{1 sub}if store}bind def end
Dvi._xxx: encountered special: !/prev...@tightpage true def (compatibility
PostScript comment for dvipng<=1.5
Dvi._xxx: encountered special: !userdict begin/bop-hook{7{currentfile token
not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2 copy gt{exch}if 4 2 roll
neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0 lt{pop 0}if}ifelse 720
add exch 720 add 3 1 roll 4{5 -1 roll add 4 1 roll}repeat <</PageSize[5 -1 roll
6 index sub 5 -1 roll 5 index sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0
ge{neg}if exch}forall]>>setpagedevice//bop-hook exec}bind def end
Dvi._xxx: encountered special: !userdict (some extra code to avoid dvipng>=1.6
unknown special: 7{currentfile token not{stop}if 65781.76 div })) pop
Dvi._xxx: encountered special: !userdict begin/bop-hook{preview-bop-level 0
le{7{currentfile token not{stop}if 65781.76 div DVImag mul}repeat 72 add 72 2
copy gt{exch}if 4 2 roll neg 2 copy lt{exch}if dup 0 gt{pop 0 exch}{exch dup 0
lt{pop 0}if}ifelse 720 add exch 720 add 3 1 roll 4{5 -1 roll add 4 1
roll}repeat <</PageSize[5 -1 roll 6 index sub 5 -1 roll 5 index
sub]/PageOffset[7 -2 roll [1 1 dtransform exch]{0 ge{neg}if
exch}forall]>>setpagedevice}if//bop-hook exec}bind def end
Dvi: /home/mdroe/.matplotlib/tex.cache/f41a13fded8e24c937c978317b0450a3.dvi
Dvi: /home/mdroe/.matplotlib/tex.cache/f41a13fded8e24c937c978317b0450a3.dvi
Assigning font /F6 = phvr8r
find_tex_file(8r.enc): ['kpsewhich', '8r.enc']
find_tex_file result: /usr/share/texmf/dvips/psnfss/8r.enc
Embedding font ptmrr8re
Writing Type-1 font
Embedding ptmrr8re which is the Type 1 font
/usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb with encoding
/usr/share/texmf/dvips/psnfss/8r.enc and effects {}
Embedding font ptmr8rn
Writing Type-1 font
Embedding ptmr8rn which is the Type 1 font
/usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb with encoding
/usr/share/texmf/dvips/psnfss/8r.enc and effects {}
Embedding font ptmro8r
Writing Type-1 font
Embedding ptmro8r which is the Type 1 font
/usr/share/texmf/fonts/type1/urw/times/utmr8a.pfb with encoding
/usr/share/texmf/dvips/psnfss/8r.enc and effects {}
Embedding font phvr8r
Writing Type-1 font
Embedding phvr8r which is the Type 1 font (none) with encoding
/usr/share/texmf/dvips/psnfss/8r.enc and effects {}
Traceback (most recent call last):
File "usetex_fonteffects.py", line 22, in <module>
pylab.savefig('usetex_fonteffects.pdf')
File "/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/pyplot.py", line
345, in savefig
return fig.savefig(*args, **kwargs)
File "/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/figure.py", line
990, in savefig
self.canvas.print_figure(*args, **kwargs)
File
"/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/backend_bases.py", line
1429, in print_figure
**kwargs)
File
"/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/backend_bases.py", line
1323, in print_pdf
return pdf.print_pdf(*args, **kwargs)
File
"/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py",
line 1911, in print_pdf
file.close()
File
"/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py",
line 440, in close
self.writeFonts()
File
"/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py",
line 521, in writeFonts
fontdictObject = self.embedType1(filename, self.dviFontInfo[filename])
File
"/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/backends/backend_pdf.py",
line 553, in embedType1
t1font = type1font.Type1Font(fontinfo.fontfile)
File "/home/mdroe/usr/lib/python2.5/site-packages/matplotlib/type1font.py",
line 55, in __init__
file = open(input, 'rb')
TypeError: coercing to Unicode: need string or buffer, NoneType found
------------------------------------------------------------------------------
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