Cleanup to remove IDE warnings and fix very minor issues.

3 jobs for v1.6.0 in 43 seconds (queued for 5 seconds)
latest
Status Name Job ID Coverage
  Build
passed wheel #1439694

00:00:23

 
  Deploy
passed deploy_PyPI #1439710

00:00:19

failed deploy_PyPI #1439695

00:00:15