René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"eventplot: allow a list of alpha channels as in the case with colors","articleBody":"I'm not sure if it's a bug or a feature. It's both.\r\n\r\n```python\r\n\u003e\u003e\u003e plt.eventplot([[0, 1, 2], [0.5, 2.3]], color=['r', 'g'])\r\n```\r\nworks while\r\n```python\r\n\u003e\u003e\u003e plt.eventplot([[0, 1, 2], [0.5, 2.3]], alpha=[0.5, 0.2])\r\n```\r\nthrows an error\r\n```\r\nTraceback (most recent call last):\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/IPython/core/interactiveshell.py\", line 3319, in run_code\r\n    exec(code_obj, self.user_global_ns, self.user_ns)\r\n  File \"\u003cipython-input-2-fab7f3737c6e\u003e\", line 1, in \u003cmodule\u003e\r\n    plt.eventplot([[0, 1, 2], [0.5, 2.3]], alpha=[0.5, 0.2])\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/matplotlib/pyplot.py\", line 2622, in eventplot\r\n    **({\"data\": data} if data is not None else {}), **kwargs)\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/matplotlib/__init__.py\", line 1447, in inner\r\n    return func(ax, *map(sanitize_sequence, args), **kwargs)\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/matplotlib/axes/_axes.py\", line 1480, in eventplot\r\n    coll.update(kwargs)\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/matplotlib/artist.py\", line 998, in update\r\n    ret.append(func(v))\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/matplotlib/collections.py\", line 834, in set_alpha\r\n    super().set_alpha(alpha)\r\n  File \"/home/ulianych/anaconda3/envs/viziphant/lib/python3.7/site-packages/matplotlib/artist.py\", line 930, in set_alpha\r\n    raise TypeError('alpha must be a float or None')\r\nTypeError: alpha must be a float or None\r\n```\r\n\r\nmatplotlib v3.3.3\r\nPython 3.7.6","author":{"url":"https://github.com/dizcza","@type":"Person","name":"dizcza"},"datePublished":"2021-01-27T13:51:26.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/19376/matplotlib/issues/19376"}