ImportError: cannot import name 'abc' from 'bson.py3compat'. Uninstalling bson and pynmongo not working

I keep getting this error when trying to run tests on my Eve code, ImportError: cannot import name 'abc' from 'bson.py3compat'. I've tried the following recommended from other sources:

pip uninstall bson
pip uninstall pymongo
pip install pymongo

Also tried:

pip uninstall bson
pip uninstall pymongo
pip install bson
pip install pymongo

After doing so I still get the same error. Any help would be appreciated.