René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Looping gifs with PillowWriter","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\nSaving a gif using PillowWriter produces a gif that does not loop. Is there a way to make the gif loop endlessly using PillowWriter?\r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug, also minimizing the number of dependencies required--\u003e\r\n\r\n```python\r\nfrom matplotlib.animation import FuncAnimation, PillowWriter\r\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\n\r\nx = np.linspace(0, 1, 20)\r\n\r\ndef f(x, i):\r\n    return x*np.sin(i/10)\r\n\r\nline, = plt.plot(x, f(x, 0))\r\nplt.xlim([0,1])\r\nplt.ylim([-1,1])\r\nfig = plt.gcf()\r\ndef animate(i):\r\n    line.set_data(x, f(x,i))\r\n\r\nanim = FuncAnimation(fig, animate, frames=60, interval=50)\r\nanim.save('fig.gif', writer=PillowWriter(fps=20))\r\nplt.show()\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![fig](https://user-images.githubusercontent.com/18018386/43351385-004606d0-91c6-11e8-9b78-12fa10a307f4.gif)\r\n\r\n\r\n**Expected outcome**\r\n\r\n\u003c!--A description of the expected outcome from the code snippet--\u003e\r\n\u003c!--If this used to work in an earlier version of Matplotlib, please note the version it used to work on--\u003e\r\n\r\nSame gif, but I want it to loop once it finishes.\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: Windows 10 Version 1803\r\n  * Matplotlib version: 2.2.2\r\n  * Matplotlib backend (`print(matplotlib.get_backend())`): Qt5Agg\r\n  * Python version: 3.6.5\r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003e\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\n\r\nMatplotlib was installed with conda.","author":{"url":"https://github.com/t-makaro","@type":"Person","name":"t-makaro"},"datePublished":"2018-07-28T01:18:32.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/11787/matplotlib/issues/11787"}