yellowbrick module instalation affects matplotlib fonts avaliable

Question

After instalation and import of yellowbrick module matplotlib can't find some of the fonts for its labels and titles like Arial, Liberation Sans, Bitstream Vera Sans, sans-serif

the following warning appears: ´´´ findfont: Generic family 'sans-serif' not found because none of the following families were found: Arial, Liberation Sans, Bitstream Vera Sans, sans-serif ´´´

even graph vizualization is affected, looking something like seaborn wolud produce

the first image its normal and represents what it should be the output

Next one is with the module import

Answer 1

I faced the same issue last week. The following steps worked for me.

1. Uninstalled yellowbrick via pip
2. Restarted my notebook
3. Imported font-manager from matplotlib. import matplotlib.font-manager

I no longer encounter the font not found issue. You can try without step 3 to see if that would work. If not, try again after importing font-manager.