René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: Markers with numeric name like CARETLEFT cannot be specified using a cycler","articleBody":"### Bug summary\n\nI want to cycle between multiple markerstyles, including those with a numeric value like CARETRIGHT as documented [here](https://matplotlib.org/stable/api/markers_api.html#module-matplotlib.markers), but I get an exception if I add one of those.\n\n### Code for reproduction\n\n```python\n#!/usr/bin/env python3\r\n\r\nfrom cycler import cycler\r\nimport matplotlib.pyplot as plt\r\nimport matplotlib.markers as mk\r\n\r\ncycle = cycler(marker=[\"+\",mk.CARETRIGHT])\r\n\r\nt=[0,1]\r\ny=[5,6]\r\n\r\nplt.rc('axes', prop_cycle=cycle)\r\nplt.plot(t,y)\r\nplt.show()\n```\n\n\n### Actual outcome\n\n```\r\nTraceback (most recent call last):\r\n  File \"/home/mcd/bugs/bug-cycler.py\", line 11, in \u003cmodule\u003e\r\n    plt.rc('axes', prop_cycle=cycle)\r\n  File \"/usr/lib/python3.11/site-packages/matplotlib/pyplot.py\", line 670, in rc\r\n    matplotlib.rc(group, **kwargs)\r\n  File \"/usr/lib/python3.11/site-packages/matplotlib/__init__.py\", line 1062, in rc\r\n    rcParams[key] = v\r\n    ~~~~~~~~^^^^^\r\n  File \"/usr/lib/python3.11/site-packages/matplotlib/__init__.py\", line 734, in __setitem__\r\n    raise ValueError(f\"Key {key}: {ve}\") from None\r\nValueError: Key axes.prop_cycle: Could not convert 5 to str\r\n```\n\n### Expected outcome\n\nA plot using CARETLEFT as marker.\n\n### Additional information\n\nThis seems like it has to do with the fact, that some markers are referred to by number and not by a string like \"+\".\r\nI don't know whether the problem is in matplotlib, cycler or the combination of both.\n\n### Operating system\n\nArtix Linux\n\n### Matplotlib Version\n\n3.8.1\n\n### Matplotlib Backend\n\nGTK4Agg\n\n### Python version\n\nPython 3.11.6\n\n### Jupyter version\n\n_No response_\n\n### Installation\n\nLinux package manager","author":{"url":"https://github.com/castilma","@type":"Person","name":"castilma"},"datePublished":"2024-01-03T18:06:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/27596/matplotlib/issues/27596"}