python3 -m venv venv
(ou python si votre python3 est python)
ou\
virtualenv -p python3 venv
source venv/bin/activate
cd venv/Scripts
activate.bat
cd ../..
pip3 install -r requirements.txt
``̀ FLASK_APP="app" DATABASE_URL="sqlite:///db.db" flask db create
FLASK_APP="app" DATABASE_URL="sqlite:///db.db?check_same_thread=False" flask run