Ask Your Question

Carlos Fernández's profile - activity

2020-02-19 13:14:05 +0200 received badge  Teacher (source)
2020-02-07 12:00:39 +0200 answered a question "UserWarning: Matplotlib is building the font cache using fc-list." never resolves

I had the same problem. I did the following:

1- Upgrade matplotlib by launching the sagemath shell running pip install --upgrade matplotlib.

2- I installed matploplib in a different virtualenv. This created a folder called ~/.matplotlib.

3- I copied the content of ~/.matplotlib to /home/sage/.sage/matplotlib-1.5.1.

It solved the issue for me.