René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Errorbars with yerr fail when fillstyle is specified","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\nErrorbar plots don't accept the `fillstyle` keyword argument anymore when using `yerr`.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nimport matplotlib.pyplot as plt\r\nplt.errorbar([1, 2, 3, 4, 5], [5, 6, 7, 8, 9], yerr=[[1, 1, 1, 1, 1], [1, 1, 1,1, 1]], ls='None', mfc='r', fillstyle='full', ecolor = 'r', mec='r',marker='s',markersize=7)\r\n```\r\n\r\n**Actual outcome**\r\n\r\n```\r\n\u003e\u003e\u003e import matplotlib.pyplot as plt\r\n\u003e\u003e\u003e plt.errorbar([1, 2, 3, 4, 5], [5, 6, 7, 8, 9], yerr=[[1, 1, 1, 1, 1], [1, 1, 1,1, 1]], ls='None', mfc='r', fillstyle='full', ecolor = 'r', mec='r',marker='s',markersize=7)\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\n  File \"/opt/python_environments/shark/lib/python3.8/site-packages/matplotlib/pyplot.py\", line 2741, in errorbar\r\n    return gca().errorbar(\r\n  File \"/opt/python_environments/shark/lib/python3.8/site-packages/matplotlib/__init__.py\", line 1352, in inner\r\n    return func(ax, *map(sanitize_sequence, args), **kwargs)\r\n  File \"/opt/python_environments/shark/lib/python3.8/site-packages/matplotlib/axes/_axes.py\", line 3497, in errorbar\r\n    barcols.append(self.vlines(\r\n  File \"/opt/python_environments/shark/lib/python3.8/site-packages/matplotlib/__init__.py\", line 1352, in inner\r\n    return func(ax, *map(sanitize_sequence, args), **kwargs)\r\n  File \"/opt/python_environments/shark/lib/python3.8/site-packages/matplotlib/axes/_axes.py\", line 1120, in vlines\r\n    lines.update(kwargs)\r\n  File \"/opt/python_environments/shark/lib/python3.8/site-packages/matplotlib/artist.py\", line 1062, in update\r\n    raise AttributeError(f\"{type(self).__name__!r} object \"\r\nAttributeError: 'LineCollection' object has no property 'fillstyle'\r\n```\r\n\r\n**Expected outcome**\r\n\r\nThe code to work as before.\r\n\r\n**Matplotlib version**\r\n\r\nInstalled on a virtual environment via `pip install -U matplotlib`:\r\n```\r\n$ pip freeze | grep matplotlib\r\nmatplotlib==3.4.0\r\n```\r\n\r\nDowngrading to `matplotlib!=3.4` (==3.3.4) works.","author":{"url":"https://github.com/rtobar","@type":"Person","name":"rtobar"},"datePublished":"2021-03-26T08:33:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/19776/matplotlib/issues/19776"}