Can not import matplotlib when launching from non-ascii path #3487
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Since this is kind of Windows-specific, maybe you wouldn't mind testing a theory for me. Does changing these calls to |
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Yes that fixes my problem. |
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Since upgrading to 1.4.0, I get the same exception. I'm not even sure it's about matplotlib, but it crashes when it gets to font_manager This is the relevant output for the exception: ---> 18 import matplotlib.pyplot as plt
19
20 from copy import deepcopy
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/pyplot.py in <module>()
25
26 import matplotlib
---> 27 import matplotlib.colorbar
28 from matplotlib import style
29 from matplotlib import _pylab_helpers, interactive
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/colorbar.py in <module>()
32 import matplotlib.artist as martist
33 import matplotlib.cbook as cbook
---> 34 import matplotlib.collections as collections
35 import matplotlib.colors as colors
36 import matplotlib.contour as contour
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/collections.py in <module>()
25 import matplotlib.artist as artist
26 from matplotlib.artist import allow_rasterization
---> 27 import matplotlib.backend_bases as backend_bases
28 import matplotlib.path as mpath
29 from matplotlib import _path
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.py in <module>()
54
55 import matplotlib.tight_bbox as tight_bbox
---> 56 import matplotlib.textpath as textpath
57 from matplotlib.path import Path
58 from matplotlib.cbook import mplDeprecation
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/textpath.py in <module>()
17 from matplotlib.path import Path
18 from matplotlib import rcParams
---> 19 import matplotlib.font_manager as font_manager
20 from matplotlib.ft2font import FT2Font, KERNING_DEFAULT, LOAD_NO_HINTING
21 from matplotlib.ft2font import LOAD_TARGET_LIGHT
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in <module>()
1410 verbose.report("Using fontManager instance from %s" % _fmcache)
1411 except:
-> 1412 _rebuild()
1413 else:
1414 _rebuild()
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in _rebuild()
1395 def _rebuild():
1396 global fontManager
-> 1397 fontManager = FontManager()
1398 if _fmcache:
1399 pickle_dump(fontManager, _fmcache)
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in __init__(self, size, weight)
1035 # Load TrueType fonts and create font dictionary.
1036
-> 1037 self.ttffiles = findSystemFonts(paths) + findSystemFonts()
1038 self.defaultFamily = {
1039 'ttf': 'Bitstream Vera Sans',
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in findSystemFonts(fontpaths, fontext)
320 fontfiles[f] = 1
321
--> 322 for f in get_fontconfig_fonts(fontext):
323 fontfiles[f] = 1
324
/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in get_fontconfig_fonts(fontext)
272 pipe = subprocess.Popen(['fc-list', '--format=%{file}\\n'],
273 stdout=subprocess.PIPE,
--> 274 stderr=subprocess.PIPE)
275 output = pipe.communicate()[0]
276 except (OSError, IOError):
/Users/ifmichael/anaconda/lib/python2.7/subprocess.pyc in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags)
708 p2cread, p2cwrite,
709 c2pread, c2pwrite,
--> 710 errread, errwrite)
711 except Exception:
712 # Preserve original exception in case os.close raises.
/Users/ifmichael/anaconda/lib/python2.7/subprocess.pyc in _execute_child(self, args, executable, preexec_fn, close_fds, cwd, env, universal_newlines, startupinfo, creationflags, shell, to_close, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite)
1325 raise
1326 child_exception = pickle.loads(data)
-> 1327 raise child_exception
1328
1329
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0: ordinal not in range(128) |
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@ifmihai That is in a different section of code (text lookup rather than rcparam file finding), can you open a new issue please? |
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I'm going to attach a PR with a fix for the original issue here, and I agree with @tacaswell that @ifmihai's issue is probably something separate. |
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That won't work for python3 since the function doesn't exist as it doesn't need any special unicode return. I don't think six has any compatibility function for this but what I've seen done for this problem in ipython is try:
getcwdu = os.getcwdu
except AttributeError:
getcwdu = os.getcwdand then use |
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@cimarronm: Good catch. Will update. |
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Is it still necessary to create another issue? For now i downgraded to 1.3.1 and everything got back to normal. |
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@ifmihai Yes, it makes it easier for us to keep track of the bugs in the library. |
tacaswell
added a commit
that referenced
this pull request
Sep 17, 2014
BUG : use getcwdu to deal with unicode in user home-path in python 2
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Can not import matplotlib when launching from non-ascii path. Matplotlib crashes with a UnicodeDecodeError. As far as I can see it is caused by calling os.getcwd and not os.getcwdu when building the path to matplotlibrc.
I could find 4 instances of getcwd in the code base:
Example non-ascii path:
Ex: ascii path: