René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ValueError: Invalid RGBA argument: 'G'","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\n### Bug report\r\n\r\n**Bug summary**\r\n\r\n\u003c!--A short 1-2 sentences that succinctly describes the bug--\u003e\r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug.\r\nPlease make sure to minimize the number of dependencies required, and provide\r\nany necessary plotted data.\r\nAvoid using threads, as Matplotlib is (explicitly) not thread-safe.--\u003e\r\n\r\n```python\r\n# Paste your code here\r\n#\r\n#\r\n\r\n 318                  bbox=dict(facecolor='none', edgecolor='0.82'), fontweight='bold')\r\n    319\r\n--\u003e 320       plt.savefig(path_main+ '\\Graph_cBSi_Para.png', bbox_inches='tight', dpi = 200)\r\n    321\r\n    322       ################ploting color map for S21 data\r\n\r\n```\r\n\r\n**Actual outcome**\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\pyplot.py in savefig(*args, **kwargs)\r\n    857 def savefig(*args, **kwargs):\r\n    858     fig = gcf()\r\n--\u003e 859     res = fig.savefig(*args, **kwargs)\r\n    860     fig.canvas.draw_idle()   # need this if 'transparent=True' to reset colors\r\n    861     return res\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\figure.py in savefig(self, fname, transparent, **kwargs)\r\n   2309                 patch.set_edgecolor('none')\r\n   2310\r\n-\u003e 2311         self.canvas.print_figure(fname, **kwargs)\r\n   2312\r\n   2313         if transparent:\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\backends\\backend_qt5agg.py in print_figure(self, *args, **kwargs)\r\n     79\r\n     80     def print_figure(self, *args, **kwargs):\r\n---\u003e 81         super().print_figure(*args, **kwargs)\r\n     82         self.draw()\r\n     83\r\n\r\nc:\\program files\\python38\\lib\\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   2191                            else suppress())\r\n   2192                     with ctx:\r\n-\u003e 2193                         self.figure.draw(renderer)\r\n   2194\r\n   2195                     bbox_inches = self.figure.get_tightbbox(\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     39                 renderer.start_filter()\r\n     40\r\n---\u003e 41             return draw(artist, renderer, *args, **kwargs)\r\n     42         finally:\r\n     43             if artist.get_agg_filter() is not None:\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\figure.py in draw(self, renderer)\r\n   1861\r\n   1862             self.patch.draw(renderer)\r\n-\u003e 1863             mimage._draw_list_compositing_images(\r\n   1864                 renderer, self, artists, self.suppressComposite)\r\n   1865\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)\r\n    129     if not_composite or not has_images:\r\n    130         for a in artists:\r\n--\u003e 131             a.draw(renderer)\r\n    132     else:\r\n    133         # Composite any adjacent images together\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     39                 renderer.start_filter()\r\n     40\r\n---\u003e 41             return draw(artist, renderer, *args, **kwargs)\r\n     42         finally:\r\n     43             if artist.get_agg_filter() is not None:\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\cbook\\deprecation.py in wrapper(*inner_args, **inner_kwargs)\r\n    409                          else deprecation_addendum,\r\n    410                 **kwargs)\r\n--\u003e 411         return func(*inner_args, **inner_kwargs)\r\n    412\r\n    413     return wrapper\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\axes\\_base.py in draw(self, renderer, inframe)\r\n   2745             renderer.stop_rasterizing()\r\n   2746\r\n-\u003e 2747         mimage._draw_list_compositing_images(renderer, self, artists)\r\n   2748\r\n   2749         renderer.close_group('axes')\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\image.py in _draw_list_compositing_images(renderer, parent, artists, suppress_composite)\r\n    129     if not_composite or not has_images:\r\n    130         for a in artists:\r\n--\u003e 131             a.draw(renderer)\r\n    132     else:\r\n    133         # Composite any adjacent images together\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     39                 renderer.start_filter()\r\n     40\r\n---\u003e 41             return draw(artist, renderer, *args, **kwargs)\r\n     42         finally:\r\n     43             if artist.get_agg_filter() is not None:\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\axis.py in draw(self, renderer, *args, **kwargs)\r\n   1176         self._update_label_position(renderer)\r\n   1177\r\n-\u003e 1178         self.label.draw(renderer)\r\n   1179\r\n   1180         self._update_offset_text_position(ticklabelBoxes, ticklabelBoxes2)\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\artist.py in draw_wrapper(artist, renderer, *args, **kwargs)\r\n     39                 renderer.start_filter()\r\n     40\r\n---\u003e 41             return draw(artist, renderer, *args, **kwargs)\r\n     42         finally:\r\n     43             if artist.get_agg_filter() is not None:\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\text.py in draw(self, renderer)\r\n    697\r\n    698             gc = renderer.new_gc()\r\n--\u003e 699             gc.set_foreground(textobj.get_color())\r\n    700             gc.set_alpha(textobj.get_alpha())\r\n    701             gc.set_url(textobj._url)\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\backend_bases.py in set_foreground(self, fg, isRGBA)\r\n    953             self._rgb = fg\r\n    954         else:\r\n--\u003e 955             self._rgb = colors.to_rgba(fg)\r\n    956\r\n    957     def set_joinstyle(self, js):\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\colors.py in to_rgba(c, alpha)\r\n    187         rgba = None\r\n    188     if rgba is None:  # Suppress exception chaining of cache lookup failure.\r\n--\u003e 189         rgba = _to_rgba_no_colorcycle(c, alpha)\r\n    190         try:\r\n    191             _colors_full_map.cache[c, alpha] = rgba\r\n\r\nc:\\program files\\python38\\lib\\site-packages\\matplotlib\\colors.py in _to_rgba_no_colorcycle(c, alpha)\r\n    258                     f\"Value must be within 0-1 range\")\r\n    259             return c, c, c, alpha if alpha is not None else 1.\r\n--\u003e 260         raise ValueError(f\"Invalid RGBA argument: {orig_c!r}\")\r\n    261     # tuple color.\r\n    262     if not np.iterable(c):\r\n\r\nValueError: Invalid RGBA argument: 'G'\r\n\u003c!--The output produced by the above code, which may be a screenshot, console output, etc.--\u003e\r\n\r\n```\r\n# If applicable, paste the console output here\r\n#\r\n#\r\n```\r\n\r\n**Expected outcome**\r\n\r\n\u003c!--A description of the expected outcome from the code snippet--\u003e\r\n\u003c!--If this used to work in an earlier version of Matplotlib, please note the version it used to work on--\u003e\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: windows 10 \r\n  * Matplotlib version (`import matplotlib; print(matplotlib.__version__)`): 3.3.2\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): Qt5Agg\r\n  * Python version: 3.8.3\r\n  * Jupyter version (if applicable): \r\n  * Other libraries: \r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003epip\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\n\r\n","author":{"url":"https://github.com/seanxwh","@type":"Person","name":"seanxwh"},"datePublished":"2021-02-24T18:23:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/19569/matplotlib/issues/19569"}