ERROR: After October 2020 you may experience errors when installing or updating packages. This is be

ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts.

We recommend you use --use-feature=2020-resolver to test your packages with the new resolver before it becomes the default.

styleframe 3.0.5 requires openpyxl<3.0.5,>=2.5, but you'll have openpyxl 3.0.5 which is incompatible.