I've been able to create animated gifs that loop infinitely using PIL without an issue, usually ending up with something like final_image.save('/path/to/images/some.gif, save_all=True, append_images=frames_images, duration=frame_speeds, loop=0) I am now in a situation where I would like to create a gif that plays a single time and does not loop. The PIL docs I used¹ are pretty clear about the loop argument but don't offer any advice for my situation: loop : int The number of iterations. Default 0 (meaning loop indefinitely). 0 causes it to loop infinitely. 1 causes it loop once (play two times). I have tried options like -1 and None but can't find a working argument. I am currently using a work around where I invoke gifsicle afterwards to remove the loop entirely but was hoping PIL would support this natively ¹ - https://imageio.readthedocs.io/en/stable/format_gif-pil.html Continue reading...