Help Needed - Import stall at plotly.graph_objs._scatterpolar

When running a local development server with Django the server stalls.
python -v check reveals the delay to occur at:

import ‘plotly.graph_objs._scatterpolar’ # <_frozen_importlib_external.SourceFileLoader object at 0x7fc35fae71f0>

Eventually, after several minutes, the file loads and the server launches.

I tried deleting the cache file and letting it rebuild
I tried rebuilding the venv with current packages

Is there a way to correct this on my end?

Figured it out. It was a bubble scatter that I had. I was loading too much data from a .csv, which was causing the delay. Once I trimmed it down, the serve launches fine.