René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Unable to save animation","articleBody":"### Bug report\r\n\r\n**Bug summary**\r\n\r\nI am unable to save an animation using ffmpeg. \r\n\u003c!--A short 1-2 sentences that succinctly describes the bug--\u003e\r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug.\r\nPlease make sure to minimize the number of dependencies required, and provide\r\nany necessary plotted data.\r\nAvoid using threads, as Matplotlib is (explicitly) not thread-safe.--\u003e\r\n\r\n```python\r\nimport matplotlib\r\nimport matplotlib.pyplot as plt\r\nfrom matplotlib.animation import FuncAnimation\r\n    \r\nx = []\r\ny = []\r\n\r\nWriter = matplotlib.animation.writers['ffmpeg']\r\nwriter = Writer(fps=15, metadata=dict(artist='Me'), bitrate=1800)\r\n\r\nfig = plt.figure()\r\nax = fig.add_subplot(111)\r\nax.set_xlim(0,500)\r\nax.set_ylim(0,1000)\r\nline, = ax.plot(0,0,'r')\r\n\r\n\r\ndef AnimationFrame(i):\r\n    x.append(i)\r\n    y.append(i ** 1.5) \r\n    line.set_xdata(x)\r\n    line.set_ydata(y)\r\n    return line,\r\nanimation = FuncAnimation(fig, func=AnimationFrame, frames=range(0,200), interval = 100)\r\n\r\nplt.show()\r\nanimation.save('im.mp4', writer=writer)\r\n```\r\n\r\n**Actual outcome**\r\n\r\n\u003c!--The output produced by the above code, which may be a screenshot, console output, etc.--\u003e\r\n\r\n```\r\nTraceback (most recent call last):\r\n  File \"pypy.py\", line 27, in \u003cmodule\u003e\r\n    animation.save('im.mp4', writer=writer)\r\n  File \"C:\\Users\\yongj\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python38\\site-packages\\matplotlib\\animation.py\", line 1156, in save\r\n    writer.grab_frame(**savefig_kwargs)\r\n  File \"C:\\Users\\yongj\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python38\\site-packages\\matplotlib\\animation.py\", line 380, in grab_frame\r\n    self.fig.set_size_inches(self._w, self._h)\r\n  File \"C:\\Users\\yongj\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python38\\site-packages\\matplotlib\\figure.py\", line 912, in set_size_inches\r\n    manager.resize(int(canvasw), int(canvash))\r\n  File \"C:\\Users\\yongj\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python38\\site-packages\\matplotlib\\backends\\_backend_tk.py\", line 532, in resize\r\n    self.canvas._tkcanvas.master.geometry(\"%dx%d\" % (width, height))\r\n  File \"C:\\Program Files\\WindowsApps\\PythonSoftwareFoundation.Python.3.8_3.8.752.0_x64__qbz5n2kfra8p0\\lib\\tkinter\\__init__.py\", line 2035, in wm_geometry\r\n    return self.tk.call('wm', 'geometry', self._w, newGeometry)\r\n_tkinter.TclError: can't invoke \"wm\" command: application has been destroyed\r\n\r\n```\r\n\r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003e\r\ninstalled matplotlib using pip\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\n\r\n","author":{"url":"https://github.com/khoo0157","@type":"Person","name":"khoo0157"},"datePublished":"2020-03-09T16:58:01.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/16713/matplotlib/issues/16713"}