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savefig to pdf: 'str' object has no attribute 'decode'#6516
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status: confirmed bugtopic: text
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v2.1

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@horribleheffalump
horribleheffalump
opened on May 31, 2016

The following script:

# -*- coding: utf-8 -*-
import matplotlib.pyplot as plt
import numpy as np
import math

from matplotlib import rc
rc('font',**{'family':'serif'})
rc('text', usetex=True)
rc('text.latex',unicode=True)
rc('text.latex',preamble=r'\usepackage[utf8]{inputenc}')
rc('text.latex',preamble=r'\usepackage[russian]{babel}')

def figsize(wcm,hcm): plt.figure(figsize=(wcm/2.54,hcm/2.54))
figsize(13,9)

x = np.linspace(0,2*math.pi,100)
y = np.sin(x)
plt.plot(x,y,'-')
plt.xlabel(u"Ось абсцисс")
plt.show()

works fine and shows the figure, but saving to pdf results in the following error:

Traceback (most recent call last):
  File "C:\Path\rus pics\___test_rus.py", line 22, in <module>
    plt.savefig(u"c:/fig.pdf")
  File "C:\Python35\lib\site-packages\matplotlib\pyplot.py", line 688, in savefig
    res = fig.savefig(*args, **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\figure.py", line 1565, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\backend_bases.py", line 2232, in print_figure
    **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\backends\backend_pdf.py", line 2536, in print_pdf
    self.figure.draw(renderer)
  File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\figure.py", line 1159, in draw
    func(*args)
  File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\axes\_base.py", line 2324, in draw
    a.draw(renderer)
  File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\axis.py", line 1120, in draw
    self.label.draw(renderer)
  File "C:\Python35\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python35\lib\site-packages\matplotlib\text.py", line 792, in draw
    mtext=mtext)
  File "C:\Python35\lib\site-packages\matplotlib\backends\backend_pdf.py", line 1866, in draw_tex
    psfont = self.tex_font_mapping(dvifont.texname)
  File "C:\Python35\lib\site-packages\matplotlib\backends\backend_pdf.py", line 1568, in tex_font_mapping
    return self.tex_font_map[texfont]
  File "C:\Python35\lib\site-packages\matplotlib\dviread.py", line 701, in __getitem__
    result = self._font[texname.decode('ascii')]
AttributeError: 'str' object has no attribute 'decode'

The error arises only if cyrillic letters are used in labels.
Matplotlib 1.5.1, Python 3.5, OS Windows 10
Stackoverflow question link

Activity

  1. horribleheffalump
    changed the title [-]savefig tp pdf: 'str' object has no attribute 'decode'[/-] [+]savefig to pdf: 'str' object has no attribute 'decode'[/+] on May 31, 2016
  2. tacaswell
    added this to the milestone on May 31, 2016
  3. tacaswell
    added
    status: confirmed bug
    on May 31, 2016

  4. tacaswell commented on May 31, 2016

    @tacaswell
    tacaswell
    on May 31, 2016
    Member

    I get different errors, but I assume I am missing the required russian specific tex packages.

    Can you drop into the debugger and get what the font name is? It looks like this is a work-around to getting bytestrings that need to be decoded to str but it is already getting in a str.

    attn @mdboom

  5. tacaswell
    added
    topic: text
    on May 31, 2016

  6. tacaswell commented on May 31, 2016

    @tacaswell
    tacaswell
    on May 31, 2016
    Member

    also @jkseppan

  7. jkseppan commented on Jun 1, 2016

    @jkseppan
    jkseppan
    on Jun 1, 2016
    Member

    I'm guessing that the Cyrillic font does not have an entry in pdftex.map, which would make this another instance of #4167.

  8. horribleheffalump commented on Jun 1, 2016

    @horribleheffalump
    horribleheffalump
    on Jun 1, 2016
    Author

    I've tried the same code under Python 2.7 and got another error:

    Traceback (most recent call last):
  File "D:\Path\___git.py", line 20, in <module>
    plt.savefig(u"d:/fig1.pdf")
  File "C:\Python27\lib\site-packages\matplotlib\pyplot.py", line 561, in savefig
    return fig.savefig(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 1421, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\backend_bases.py", line 2220, in print_figure
    **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\backend_bases.py", line 1952, in print_pdf
    return pdf.print_pdf(*args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_pdf.py", line 2352, in print_pdf
    self.figure.draw(renderer)
  File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\figure.py", line 1034, in draw
    func(*args)
  File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\axes.py", line 2086, in draw
    a.draw(renderer)
  File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\axis.py", line 1105, in draw
    self.label.draw(renderer)
  File "C:\Python27\lib\site-packages\matplotlib\artist.py", line 55, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Python27\lib\site-packages\matplotlib\text.py", line 594, in draw
    self._fontproperties, angle, mtext=self)
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_pdf.py", line 1739, in draw_tex
    psfont = self.tex_font_mapping(dvifont.texname)
  File "C:\Python27\lib\site-packages\matplotlib\backends\backend_pdf.py", line 1469, in tex_font_mapping
    return self.tex_font_map[texfont]
  File "C:\Python27\lib\site-packages\matplotlib\dviread.py", line 705, in __getitem__
    result = self._font[texname.decode('ascii')]
KeyError: u'larm1200'

    larm1200 that's the font name

  9. jkseppan commented on Jun 18, 2016

    @jkseppan
    jkseppan
    on Jun 18, 2016
    Member

    I don't get this error on current master, but the line of text is cut off in the middle.
    issue6516screenshot

  10. jkseppan commented on Jun 18, 2016

    @jkseppan
    jkseppan
    on Jun 18, 2016
    Member

    FWIW, I've got TeX Live 2015 on OS X 10.11. The font called larm1200 by TeX is supplied in the file sfrm1200.pfb.

    % grep larm1200 $(kpsewhich pdftex.map)    
larm1200 SFRM1200 " T2AEncoding ReEncodeFont " <cm-super-t2a.enc <sfrm1200.pfb
% kpsewhich sfrm1200.pfb
/usr/local/texlive/2015/texmf-dist/fonts/type1/public/cm-super/sfrm1200.pfb

    @horribleheffalump: Do you have an entry for larm1200 in pdftex.map? Is there a corresponding pfa or pfb file?

  11. horribleheffalump commented on Jun 19, 2016

    @horribleheffalump
    horribleheffalump
    on Jun 19, 2016
    Author

    @jkseppan Yes! That was the problem. I've installed sfrm1200.pfb as a part of cm-super package, and now it all works fine. Thank you!

  12. cwberardi commented on Aug 25, 2016

    @cwberardi
    cwberardi
    on Aug 25, 2016

    The following script is giving me the same error:

    # -*- coding: utf-8 -*-
import matplotlib as mpl
mpl.rcParams['backend'] = 'pdf'
mpl.rc('font',**{'family':'serif'})
mpl.rc('text', usetex=True)
mpl.rc('text.latex',unicode=True)

import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.ticker import FuncFormatter

millionFormatter        = FuncFormatter(lambda x, pos:'\$%1.0fM' % (x*1e-6))
percentFormatter        = FuncFormatter(lambda x, pos:'{:.2%}'.format(x))

errorDF = pd.DataFrame({'% Diff':[ -6.12256893e-13,   1.27849915e-12,   6.29839396e-06,
                                  3.38728472e-05,   6.23072435e-06,   5.03582306e-06,
                                  -1.09295890e-05,   2.04080118e-04],
                        'Difference': [ -2.43408203e-01,   4.77478027e-01,   2.31911964e+06,
                                       1.26799125e+07,   2.25939726e+06,   1.55594653e+06,
                                       -3.10751878e+06,   5.58644987e+07]}
                       ,index = np.arange(2008,2016))

sns.set_style('ticks')
fig = plt.figure(figsize=(5,2))
ax = fig.add_subplot(111)
ax2 = ax.twinx()
errorDF['% Diff'].plot(kind='bar', position=1, ax=ax, color = 'r', legend=True, label = 'Percent Error',ylim=(0,0.0005), **{'width':0.3})
errorDF.Difference.plot(kind='bar', position=0, ax=ax2,ylim=(0,80000000), legend=True, label = 'Absolute Error [secondary y-axis]', **{'width':0.3})
ax2.legend(loc= 'upper left')
ax.set_xlabel('')
ax2.set_xlabel('')
ax.legend(bbox_to_anchor= (0.286,0.85))
ax.yaxis.set_major_formatter(percentFormatter)
ax2.yaxis.set_major_formatter(millionFormatter)
ax.yaxis.set_ticks([0,0.0001,0.0002,0.0003, 0.0004])
ax2.yaxis.set_ticks([0,20000000,40000000,60000000])
fig.savefig(r'C:\ . . .\dataerrors.pdf', bbox_inches='tight')

    Which produces the following error:

    Traceback (most recent call last):
  File "<ipython-input-46-ee8c792b07cc>", line 21, in <module>
    fig.savefig(r'C:\Users\Chris\Documents\MIT\Dissertation\FPDS\Visualizations\USASpending\dataerrors.pdf', bbox_inches='tight',dpi=150)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\figure.py", line 1565, in savefig
    self.canvas.print_figure(*args, **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\backend_bases.py", line 2180, in print_figure
    **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\backends\backend_pdf.py", line 2536, in print_pdf
    self.figure.draw(renderer)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\figure.py", line 1159, in draw
    func(*args)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\axes\_base.py", line 2324, in draw
    a.draw(renderer)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\axis.py", line 1111, in draw
    tick.draw(renderer)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\axis.py", line 254, in draw
    self.label2.draw(renderer)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\artist.py", line 61, in draw_wrapper
    draw(artist, renderer, *args, **kwargs)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\text.py", line 792, in draw
    mtext=mtext)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\backends\backend_pdf.py", line 1866, in draw_tex
    psfont = self.tex_font_mapping(dvifont.texname)
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\backends\backend_pdf.py", line 1568, in tex_font_mapping
    return self.tex_font_map[texfont]
  File "C:\Users\Chris\Anaconda3\envs\py34\lib\site-packages\matplotlib\dviread.py", line 701, in __getitem__
    result = self._font[texname.decode('ascii')]
AttributeError: 'str' object has no attribute 'decode'

    However, I am not using any special characters except [ '%', '$'], which I have escaped. The figure will show fine on the console. The error occurs when I attempt to save as a .pdf.

    Matplotlib 1.5.1, Python 3.4, OS Windows 7

  13. jkseppan
    added 2 commits that reference this issue on Aug 25, 2016

    Handle dvi font names as ASCII bytestrings

    a01103d

    Add a helpful note when raising KeyError from dviread.PsFonts

    6967570

  14. cwberardi commented on Aug 25, 2016

    @cwberardi
    cwberardi
    on Aug 25, 2016

    @jkseppan thanks for quick review. Stackoverflow link should you have any suggestions an a temporary work around.

  15. jkseppan commented on Aug 26, 2016

    @jkseppan
    jkseppan
    on Aug 26, 2016
    Member

    See pull request #6977 for a fix that improves the error message so you know which font is missing. You probably need to install some PS font package in your TeX package manager.

  16. jkseppan
    added 2 commits that reference this issue on Dec 27, 2016

    Handle dvi font names as ASCII bytestrings

    c874ee1

    Add a helpful note when raising KeyError from dviread.PsFonts

    1c2c055
  17. jkseppan
    added 2 commits that reference this issue on Jan 29, 2017

    Handle dvi font names as ASCII bytestrings

    705b021

    Add a helpful note when raising KeyError from dviread.PsFonts

    4874e4e
  18. QuLogic
    modified the milestones: , on May 3, 2017

  19. tacaswell commented on Oct 21, 2017

    @tacaswell
    tacaswell
    on Oct 21, 2017
    Member

    This was fixed by #6977 and went out with 2.1

  20. tacaswell
    closed this as completedon Oct 21, 2017
  21. tacaswell
    modified the milestones: v2.1.1, on Oct 21, 2017
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