High CPU load when bpython is in use

Experiencing a high python process CPU load despite not running any python script.
The issue persists as long as bpython is in use, quitting bpython resolves the high CPU load.
Running python or ipython does not cause the same issue.

MacOS Catalina 10.15.4
python 3.7.7: /Users/username/opt/anaconda3/bin/python
bpython 0.19

Apologies in advance if this issue has been addressed or the solution is trivial.
Thanks!