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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Error in Axes.redraw_in_frame in use of ExitStack: push() takes 2 positional arguments but 3 were given","articleBody":"### Bug report\r\n\r\nCode that was working in 3.2.1 uses `redraw_in_frame`, now broken in 3.3.0 and 3.3.2, even though this API has not changed.\r\n\r\n**Bug summary**\r\n\r\nUse of `Axes.redraw_in_frame` leads to an error calling function `ExitStack.push()`.\r\n\r\n**Code for reproduction**\r\n\r\nCan be reproduced by running this small program,\r\n\r\n```\r\nimport matplotlib.pyplot as plt\r\nfig, ax = plt.subplots(1,1)\r\nax.plot([1,2,3])\r\nfig.canvas.draw()\r\nax.redraw_in_frame()\r\n```\r\n\r\n**Actual outcome**\r\n\r\nresults in,\r\n\r\n```\r\n$ python3 redraw_test.py \r\nTraceback (most recent call last):\r\n  File \"redraw_test.py\", line 7, in \u003cmodule\u003e\r\n    ax.redraw_in_frame()\r\n  File \"/home/stephen.sinclair/.local/lib/python3.6/site-packages/matplotlib/axes/_base.py\", line 2777, in redraw_in_frame\r\n    stack.push(artist.set_visible, artist.get_visible())\r\nTypeError: push() takes 2 positional arguments but 3 were given\r\n```\r\n\r\nTested only in Python 3.6 and Python 3.7, but according to docs, the API for contextlib.ExitStack.push has not changed with Python 3.8, so error should be the same.\r\n\r\n**Expected outcome**\r\n\r\nFunction `redraw_in_frame` gives no error.\r\n\r\n**Matplotlib version**\r\n\r\nCode worked with matplotlib 3.2.1, but broken in 3.3.2.\r\n\r\n  * Operating system: Ubuntu 18.04\r\n  * Matplotlib version: 3.3.2\r\n  * Matplotlib backend: TkAgg, Agg.\r\n  * Python version: 3.6, 3.7.\r\n  * Jupyter version (if applicable): n/a\r\n  * Other libraries: n/a\r\n\r\nInstalled via pip3.\r\n","author":{"url":"https://github.com/radarsat1","@type":"Person","name":"radarsat1"},"datePublished":"2020-09-22T08:55:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/18539/matplotlib/issues/18539"}