René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Issue with non-ascii paths in font look up","articleBody":"I posted in #3487 and following the suggestion of @tacaswell , I create a separate issue, for easier bug tracking:\n\nSince upgrading to 1.4.0, I get the same exception.\nI'm on Mac, Mavericks, latest version. anaconda bundle.\n\nI'm not even sure it's about matplotlib, but it crashes when it gets to font_manager.\n\nThis is the relevant output for the exception:\n\n``` python\n---\u003e 18 import matplotlib.pyplot as plt\n     19\n     20 from copy import deepcopy\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/pyplot.py in \u003cmodule\u003e()\n     25\n     26 import matplotlib\n---\u003e 27 import matplotlib.colorbar\n     28 from matplotlib import style\n     29 from matplotlib import _pylab_helpers, interactive\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/colorbar.py in \u003cmodule\u003e()\n     32 import matplotlib.artist as martist\n     33 import matplotlib.cbook as cbook\n---\u003e 34 import matplotlib.collections as collections\n     35 import matplotlib.colors as colors\n     36 import matplotlib.contour as contour\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/collections.py in \u003cmodule\u003e()\n     25 import matplotlib.artist as artist\n     26 from matplotlib.artist import allow_rasterization\n---\u003e 27 import matplotlib.backend_bases as backend_bases\n     28 import matplotlib.path as mpath\n     29 from matplotlib import _path\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/backend_bases.py in \u003cmodule\u003e()\n     54\n     55 import matplotlib.tight_bbox as tight_bbox\n---\u003e 56 import matplotlib.textpath as textpath\n     57 from matplotlib.path import Path\n     58 from matplotlib.cbook import mplDeprecation\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/textpath.py in \u003cmodule\u003e()\n     17 from matplotlib.path import Path\n     18 from matplotlib import rcParams\n---\u003e 19 import matplotlib.font_manager as font_manager\n     20 from matplotlib.ft2font import FT2Font, KERNING_DEFAULT, LOAD_NO_HINTING\n     21 from matplotlib.ft2font import LOAD_TARGET_LIGHT\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in \u003cmodule\u003e()\n   1410                 verbose.report(\"Using fontManager instance from %s\" % _fmcache)\n   1411         except:\n-\u003e 1412             _rebuild()\n   1413     else:\n   1414         _rebuild()\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in _rebuild()\n   1395     def _rebuild():\n   1396         global fontManager\n-\u003e 1397         fontManager = FontManager()\n   1398         if _fmcache:\n   1399             pickle_dump(fontManager, _fmcache)\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in __init__(self, size, weight)\n   1035         #  Load TrueType fonts and create font dictionary.\n   1036\n-\u003e 1037         self.ttffiles = findSystemFonts(paths) + findSystemFonts()\n   1038         self.defaultFamily = {\n   1039             'ttf': 'Bitstream Vera Sans',\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in findSystemFonts(fontpaths, fontext)\n    320                     fontfiles[f] = 1\n    321\n--\u003e 322             for f in get_fontconfig_fonts(fontext):\n    323                 fontfiles[f] = 1\n    324\n\n/Users/ifmichael/anaconda/lib/python2.7/site-packages/matplotlib/font_manager.py in get_fontconfig_fonts(fontext)\n    272         pipe = subprocess.Popen(['fc-list', '--format=%{file}\\\\n'],\n    273                                 stdout=subprocess.PIPE,\n--\u003e 274                                 stderr=subprocess.PIPE)\n    275         output = pipe.communicate()[0]\n    276     except (OSError, IOError):\n\n/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)\n    708                                 p2cread, p2cwrite,\n    709                                 c2pread, c2pwrite,\n--\u003e 710                                 errread, errwrite)\n    711         except Exception:\n    712             # Preserve original exception in case os.close raises.\n\n/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)\n   1325                         raise\n   1326                 child_exception = pickle.loads(data)\n-\u003e 1327                 raise child_exception\n   1328\n   1329\n\nUnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 0: ordinal not in range(128)\n```\n\nRight now I downgraded to 1.3.1, and everything got back to normal.\n","author":{"url":"https://github.com/ifmihai","@type":"Person","name":"ifmihai"},"datePublished":"2014-09-14T22:00:05.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":38},"url":"https://github.com/3517/matplotlib/issues/3517"}