Flask-DebugToolbar == 0.10.1
flask-shell-ipython == 0.4.1
mypy == 0.720
python-dotenv == 0.9.1

black == 19.3b0
Flask-DebugToolbar == 0.10.1
flask-shell-ipython == 0.4.1
mypy == 0.720
python-dotenv == 0.9.1

Add Black as development dependency
Add Black as development dependency
