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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Unable to save figure as pdf while using latex package concmath","articleBody":"Hello all,\r\n\r\nI seem to run into a problem when I use the (latex) package `concmath`, and try saving the resultant plot as a pdf (png and jpeg work fine). As suggested in #10272, I've tried installing the \"cm-super\" package, but this does not solve the issue. I've also played around with the backends, but the problem still persists. A short code that generates this issue:\r\n\r\n```\r\nfig = plt.figure(figsize=(4, 4))\r\nax = fig.add_axes([0, 0, 1, 1])\r\n\r\nplt.rcParams['font.family'] = 'monospace'\r\nplt.rcParams['text.usetex'] = True\r\nrc('text.latex', preamble=r'\\usepackage[OT1]{fontenc}\\usepackage{concmath}')\r\n\r\nplt.plot([10**1,10**9], [1,10], label='Test M$_\\star$')\r\nplt.scatter([10**1,10**9], [1,10], label='Test1 M$_\\star$ = 10M$_\\odot$')\r\nplt.xscale('log')\r\nplt.yscale('log')\r\n\r\nplt.xlabel('Test')\r\nplt.ylabel('Test')\r\n\r\nplt.xlim(10, 10**9)\r\n\r\nplt.legend()\r\n\r\nplt.savefig('test.pdf', bbox_inches='tight')\r\n```\r\n\r\nwith the following traceback:\r\n\r\n```\r\nKeyError                                  Traceback (most recent call last)\r\n\u003cipython-input-3-de7a1b0d622a\u003e in \u003cmodule\u003e\r\n     14 plt.legend()\r\n     15 \r\n---\u003e 16 plt.savefig('test_sm.pdf', bbox_inches='tight')\r\n\r\n~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/site-packages/matplotlib/figure.py in savefig(self, fname, transparent, **kwargs)\r\n   3003                 patch.set_edgecolor('none')\r\n   3004 \r\n-\u003e 3005         self.canvas.print_figure(fname, **kwargs)\r\n   3006 \r\n   3007         if transparent:\r\n\r\n~/opt/anaconda3/lib/python3.8/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   2253                 # force the figure dpi to 72), so we need to set it again here.\r\n   2254                 with cbook._setattr_cm(self.figure, dpi=dpi):\r\n-\u003e 2255                     result = print_method(\r\n   2256                         filename,\r\n   2257                         facecolor=facecolor,\r\n\r\n~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/site-packages/matplotlib/figure.py in draw(self, renderer)\r\n   2778 \r\n   2779             self.patch.draw(renderer)\r\n-\u003e 2780             mimage._draw_list_compositing_images(\r\n   2781                 renderer, self, artists, self.suppressComposite)\r\n   2782 \r\n\r\n~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/site-packages/matplotlib/axis.py in draw(self, renderer, *args, **kwargs)\r\n   1139 \r\n   1140         for tick in ticks_to_draw:\r\n-\u003e 1141             tick.draw(renderer)\r\n   1142 \r\n   1143         # scale up the axis label box to also find the neighbors, not\r\n\r\n~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/site-packages/matplotlib/text.py in draw(self, renderer)\r\n    721 \r\n    722                 if textobj.get_usetex():\r\n--\u003e 723                     textrenderer.draw_tex(gc, x, y, clean_line,\r\n    724                                           textobj._fontproperties, angle,\r\n    725                                           mtext=mtext)\r\n\r\n~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/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~/opt/anaconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.py in dviFontName(self, dvifont)\r\n    863 \r\n    864         tex_font_map = dviread.PsfontsMap(dviread.find_tex_file('pdftex.map'))\r\n--\u003e 865         psfont = tex_font_map[dvifont.texname]\r\n    866         if psfont.filename is None:\r\n    867             raise ValueError(\r\n\r\n~/opt/anaconda3/lib/python3.8/site-packages/matplotlib/dviread.py in __getitem__(self, texname)\r\n    856         assert isinstance(texname, bytes)\r\n    857         try:\r\n--\u003e 858             result = self._font[texname]\r\n    859         except KeyError:\r\n    860             fmt = ('A PostScript file for the font whose TeX name is \"{0}\" '\r\n\r\nKeyError: b'ccr10'\r\n```\r\n\r\nPlease let me know if there's a way to circumvent this issue. Thank you all in advance!\r\n\r\n  * Operating system: macOS Big Sur 11.2.3\r\n  * Matplotlib version: 3.4.2\r\n  * Matplotlib backend: module://ipykernel.pylab.backend_inline\r\n  * Python version: 3.8.8\r\n\r\n  * Matploblib came pre-installed with anaconda, but upgraded through pip.\r\n\r\n\r\n\r\n","author":{"url":"https://github.com/oorc06","@type":"Person","name":"oorc06"},"datePublished":"2021-06-19T14:09:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/20469/matplotlib/issues/20469"}