Another try

Author: mseeger

.github/workflows/lint.yml

@@ -31,6 +31,6 @@ jobs:
         # runs Black on all python files committed in git
         echo "Running black: https://github.com/psf/black"
         echo "Black should pass before commit! If this fails, run the command on the next line to fix the errors, then commit the changes"
-        echo "git ls-files | grep "\.py$" |  xargs black"
+        echo "git ls-files | grep \"\.py\$\" |  xargs black"
         echo "Run 'pip install -e .' if you do not have Black installed locally."
-        git ls-files | grep "\.py$" |  xargs black --check
+        git ls-files | grep "\.py$" |  xargs black --diff