Correct spelling of parentheses in tox.ini.
This corrects a misspelling that is caught in the latest isort 5.0.2, but there is still another issue. See https://github.com/timothycrosley/isort/issues/1258.
This corrects a misspelling that is caught in the latest isort 5.0.2, but there is still another issue. See https://github.com/timothycrosley/isort/issues/1258.