Using Mapbox tiles with folium
As per http://python-visualization.github.io/folium/quickstart.html "Folium supports passing any Leaflet.js compatible custom tileset" let lets try that and bypass it's built in support:
folium.Map(location=[45.372, -121.6972],
zoom_start=12,
tiles='"http://{s}.tiles.mapbox.com/v4/wtgeographer.2fb7fc73/{z}/{x}/{y}.png?access_token=pk.xxx',
attr='XXX Mapbox Attribution')
You'll need to places the pk.xxx with your pubilc access token.
This uses the API for Mapbox Studio Classic styles.