I had this. It turned out that my issue was that "%matplotlib" and "%matplotlib inline" are different, and I was using one when I needed to use the other (I for

I had this. It turned out that my issue was that "%matplotlib" and "%matplotlib inline" are different, and I was using one when I needed to use the other (I forget which). Edit: Just noticed you didn't mention Jupyter so I guess disregard if you aren't using it.