Permission denied when using matplotlib animation

Question

Trying to make an animation using example code found here. I have installed both ffmpeg and yasm, but when I run the code, including the line

ani.save('test.mp4', writer = FFwriter, dpi = 40)

I get the following error.

PermissionError: [Errno 13] Permission denied

(where FFwriter = animation.FFMpegWriter(fps = 30) is defined in the beginning of my Jupyter doc). I have tried so much, but can't get anything to work. Even tried changing the permissions of ffmpeg but still can't get the error to go away.

EDIT Here is my imports and such to include more detail

import numpy as np
import matplotlib
import matplotlib.pyplot as plt
import matplotlib.animation as animation
plt.rcParams['animation.ffmpeg_path'] = '/usr/local/Cellar/ffmpeg/'
FFwriter = animation.FFMpegWriter(fps = 30)

Answer 1

You do not have permission to save in your working directory. Either write a full filepath to a place where you do have permission or run your script with sudo so that you do have permission.