René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: Broken functionality: Qt5/PySide2, using interactive mode, fig.canvas.draw() then fig.canvas.flush_events() leaves plot in non-interactive state.","articleBody":"### Bug summary\n\nMatplotlib 3.9.0, PySide2 with Qt5 5.15.2, Python 3.11.9, IPython 8.25.0 (or jupter qtconsole 5.5.2)\r\n\r\nThe attached code leaves the plot in a non-interative state.\r\n\r\nThe blank figure comes up correctly with the plt.figure() call.  The plot draws correctly at fig.canvas.flush_events(). the final state is not interactive.\n\n### Code for reproduction\n\n```Python\nimport matplotlib\r\nmatplotlib.use('Qt5Agg')\r\n\r\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\n\r\nx=np.arange(10)\r\ny=x*x\r\n\r\nplt.ion()\r\n\r\nfig=plt.figure()\r\nax=fig.add_subplot(111)\r\nline,=ax.plot(x,y)\r\n\r\nfig.canvas.draw()\r\nfig.canvas.flush_events()\n```\n\n\n### Actual outcome\n\nPlot is not responsive but is displayed correctly.\r\n\r\n\n\n### Expected outcome\n\nShould be able to interact with the plot, including selection of toolbar buttons, zooming etc.\n\n### Additional information\n\nThe submission is a simplified use-case of a more complex applicaion under development. The plots in the application used to be left in an interactive state once the applications simulation completes execution.\n\n### Operating system\n\nUbuntu 20.04\n\n### Matplotlib Version\n\n3.9.0\n\n### Matplotlib Backend\n\nQt5Agg\n\n### Python version\n\n3.11.9\n\n### Jupyter version\n\nIPython 8.25.0 or jupyter qtconsole 5.5.2\n\n### Installation\n\nfrom source (.tar.gz)","author":{"url":"https://github.com/chrisgmorton","@type":"Person","name":"chrisgmorton"},"datePublished":"2024-10-09T18:37:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/28959/matplotlib/issues/28959"}