René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Unable to save as pdf while using Tex","articleBody":"### Bug summary\r\n\r\nI am unable to save figures as pdf while using Tex. The figures are generated, but just not saved into a pdf file. I don't face the problem while saving files as either jpg's or png's. Everything seems to work fine if I disable Tex.\r\n\r\n### Code for reproduction\r\n\r\n```python\r\nimport matplotlib.pyplot as plt\r\nimport matplotlib.font_manager as fm\r\nfrom cycler import cycler\r\nfrom matplotlib import rc\r\n\r\nplt.rcParams['font.size'] = 11\r\nplt.rcParams['figure.autolayout'] = True\r\nplt.rcParams['savefig.dpi'] = 300\r\nplt.rcParams['xtick.labelsize'] = 'medium'\r\nplt.rcParams['ytick.labelsize'] = 'medium'\r\nplt.rcParams['xtick.major.size'] = 8\r\nplt.rcParams['ytick.major.size'] = 8\r\nplt.rcParams['xtick.minor.size'] = 3\r\nplt.rcParams['ytick.minor.size'] = 3\r\nplt.rcParams['xtick.major.width'] = 1\r\nplt.rcParams['ytick.major.width'] = 1\r\nplt.rcParams['xtick.minor.width'] = 1\r\nplt.rcParams['ytick.minor.width'] = 1\r\nplt.rcParams['xtick.top'] = True\r\nplt.rcParams['ytick.right'] = True\r\nplt.rcParams['xtick.minor.visible'] = True\r\nplt.rcParams['ytick.minor.visible'] = True\r\nplt.rcParams['xtick.direction'] = 'in'\r\nplt.rcParams['ytick.direction'] = 'in'\r\nplt.rcParams['lines.markersize'] = 4\r\nplt.rcParams['lines.linewidth'] = 1\r\nplt.rcParams['lines.markeredgewidth'] = 0.2\r\nplt.rcParams['path.simplify'] = True\r\nplt.rcParams['text.usetex'] = True\r\nrc('text.latex', preamble=r'\\usepackage[T1]{fontenc}\\usepackage{cmbright}')\r\nplt.rcParams['axes.linewidth'] = 0.7\r\nplt.rcParams['axes.labelsize'] = 'large'\r\nplt.rcParams['axes.prop_cycle'] = cycler(color=['k', 'r', 'g', 'b', 'c', 'm', 'y'])\r\nplt.rcParams['legend.numpoints'] = 1\r\nplt.rcParams['legend.frameon'] = False\r\nplt.rcParams['legend.handletextpad'] = 0.3\r\nplt.rcParams['legend.scatterpoints'] = 1\r\nplt.rcParams['legend.handlelength'] = 2\r\nplt.rcParams['legend.handleheight'] = 0.1\r\n\r\nplt.plot([10,100], [10,100])\r\nplt.savefig('test.pdf')\r\n```\r\n\r\n\r\n### Actual outcome\r\n\r\n```\r\n---------------------------------------------------------------------------\r\nFileNotFoundError                         Traceback (most recent call last)\r\n\u003cipython-input-6-368972b0f1c2\u003e in \u003cmodule\u003e\r\n      1 plt.plot([10,100], [10,100])\r\n----\u003e 2 plt.savefig('test.pdf')\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/pyplot.py in savefig(*args, **kwargs)\r\n    964 def savefig(*args, **kwargs):\r\n    965     fig = gcf()\r\n--\u003e 966     res = fig.savefig(*args, **kwargs)\r\n    967     fig.canvas.draw_idle()   # need this if 'transparent=True' to reset colors\r\n    968     return res\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/figure.py in savefig(self, fname, transparent, **kwargs)\r\n   3013                 patch.set_edgecolor('none')\r\n   3014 \r\n-\u003e 3015         self.canvas.print_figure(fname, **kwargs)\r\n   3016 \r\n   3017         if transparent:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/backend_bases.py in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, bbox_inches, pad_inches, bbox_extra_artists, backend, **kwargs)\r\n   2259                         orientation=orientation,\r\n   2260                         bbox_inches_restore=_bbox_inches_restore,\r\n-\u003e 2261                         **kwargs)\r\n   2262             finally:\r\n   2263                 if bbox_inches and restore_bbox:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/backend_bases.py in wrapper(*args, **kwargs)\r\n   1667             kwargs.pop(arg)\r\n   1668 \r\n-\u003e 1669         return func(*args, **kwargs)\r\n   1670 \r\n   1671     return wrapper\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/_api/deprecation.py in wrapper(*inner_args, **inner_kwargs)\r\n    429                          else deprecation_addendum,\r\n    430                 **kwargs)\r\n--\u003e 431         return func(*inner_args, **inner_kwargs)\r\n    432 \r\n    433     return wrapper\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/backends/backend_pdf.py in print_pdf(self, filename, dpi, bbox_inches_restore, metadata)\r\n   2723                 RendererPdf(file, dpi, height, width),\r\n   2724                 bbox_inches_restore=bbox_inches_restore)\r\n-\u003e 2725             self.figure.draw(renderer)\r\n   2726             renderer.finalize()\r\n   2727             if not isinstance(filename, PdfPages):\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     72     @wraps(draw)\r\n     73     def draw_wrapper(artist, renderer, *args, **kwargs):\r\n---\u003e 74         result = draw(artist, renderer, *args, **kwargs)\r\n     75         if renderer._rasterizing:\r\n     76             renderer.stop_rasterizing()\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     49                 renderer.start_filter()\r\n     50 \r\n---\u003e 51             return draw(artist, renderer, *args, **kwargs)\r\n     52         finally:\r\n     53             if artist.get_agg_filter() is not None:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/figure.py in draw(self, renderer)\r\n   2789             self.patch.draw(renderer)\r\n   2790             mimage._draw_list_compositing_images(\r\n-\u003e 2791                 renderer, self, artists, self.suppressComposite)\r\n   2792 \r\n   2793             for sfig in self.subfigs:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)\r\n    130     if not_composite or not has_images:\r\n    131         for a in artists:\r\n--\u003e 132             a.draw(renderer)\r\n    133     else:\r\n    134         # Composite any adjacent images together\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     49                 renderer.start_filter()\r\n     50 \r\n---\u003e 51             return draw(artist, renderer, *args, **kwargs)\r\n     52         finally:\r\n     53             if artist.get_agg_filter() is not None:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/_api/deprecation.py in wrapper(*inner_args, **inner_kwargs)\r\n    429                          else deprecation_addendum,\r\n    430                 **kwargs)\r\n--\u003e 431         return func(*inner_args, **inner_kwargs)\r\n    432 \r\n    433     return wrapper\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/axes/_base.py in draw(self, renderer, inframe)\r\n   2919             renderer.stop_rasterizing()\r\n   2920 \r\n-\u003e 2921         mimage._draw_list_compositing_images(renderer, self, artists)\r\n   2922 \r\n   2923         renderer.close_group('axes')\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)\r\n    130     if not_composite or not has_images:\r\n    131         for a in artists:\r\n--\u003e 132             a.draw(renderer)\r\n    133     else:\r\n    134         # Composite any adjacent images together\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     49                 renderer.start_filter()\r\n     50 \r\n---\u003e 51             return draw(artist, renderer, *args, **kwargs)\r\n     52         finally:\r\n     53             if artist.get_agg_filter() is not None:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/axis.py in draw(self, renderer, *args, **kwargs)\r\n   1144 \r\n   1145         for tick in ticks_to_draw:\r\n-\u003e 1146             tick.draw(renderer)\r\n   1147 \r\n   1148         # scale up the axis label box to also find the neighbors, not\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     49                 renderer.start_filter()\r\n     50 \r\n---\u003e 51             return draw(artist, renderer, *args, **kwargs)\r\n     52         finally:\r\n     53             if artist.get_agg_filter() is not None:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/axis.py in draw(self, renderer)\r\n    300         for artist in [self.gridline, self.tick1line, self.tick2line,\r\n    301                        self.label1, self.label2]:\r\n--\u003e 302             artist.draw(renderer)\r\n    303         renderer.close_group(self.__name__)\r\n    304         self.stale = False\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     49                 renderer.start_filter()\r\n     50 \r\n---\u003e 51             return draw(artist, renderer, *args, **kwargs)\r\n     52         finally:\r\n     53             if artist.get_agg_filter() is not None:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/text.py in draw(self, renderer)\r\n    723                     textrenderer.draw_tex(gc, x, y, clean_line,\r\n    724                                           textobj._fontproperties, angle,\r\n--\u003e 725                                           mtext=mtext)\r\n    726                 else:\r\n    727                     textrenderer.draw_text(gc, x, y, clean_line,\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/_api/deprecation.py in wrapper(*inner_args, **inner_kwargs)\r\n    429                          else deprecation_addendum,\r\n    430                 **kwargs)\r\n--\u003e 431         return func(*inner_args, **inner_kwargs)\r\n    432 \r\n    433     return wrapper\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/backends/backend_pdf.py in draw_tex(self, gc, x, y, s, prop, angle, ismath, mtext)\r\n   2190         for x1, y1, dvifont, glyph, width in page.text:\r\n   2191             if dvifont != oldfont:\r\n-\u003e 2192                 pdfname = self.file.dviFontName(dvifont)\r\n   2193                 seq += [['font', pdfname, dvifont.size]]\r\n   2194                 oldfont = dvifont\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/backends/backend_pdf.py in dviFontName(self, dvifont)\r\n    862             return dvi_info.pdfname\r\n    863 \r\n--\u003e 864         tex_font_map = dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))\r\n    865         psfont = tex_font_map[dvifont.texname]\r\n    866         if psfont.filename is None:\r\n\r\n~/.local/lib/python3.7/site-packages/matplotlib/dviread.py in __new__(cls, filename)\r\n    849         self._font = {}\r\n    850         self._filename = os.fsdecode(filename)\r\n--\u003e 851         with open(filename, 'rb') as file:\r\n    852             self._parse(file)\r\n    853         return self\r\n\r\nFileNotFoundError: [Errno 2] No such file or directory: ''\r\n```\r\n\r\n\r\n### Expected outcome\r\n\r\nCode is expected to produce a pdf file.\r\n\r\n### Operating system\r\n\r\nSUSE Linux Enterprise Server 12 SP5\r\n\r\n### Matplotlib Version\r\n\r\n3.4.3\r\n\r\n### Matplotlib Backend\r\n\r\nmodule://ipykernel.pylab.backend_inline\r\n\r\n### Python version\r\n\r\nPython 3.7.4\r\n\r\n### Jupyter version\r\n\r\n6.0.1\r\n\r\n### Other libraries\r\n\r\n_No response_\r\n\r\n### Installation\r\n\r\npip\r\n\r\n### Conda channel\r\n\r\n_No response_","author":{"url":"https://github.com/oorc06","@type":"Person","name":"oorc06"},"datePublished":"2021-10-14T09:40:53.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/21354/matplotlib/issues/21354"}