do this in terminal
pip3 install flask
pip3 install Flask-Cors
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
pip3 install os-sys
pip3 install --upgrade pip3
pip3 install -U flask-cors
pip3 install SpeechRecognition
pip3 install -U PyObjC
pip3 install scipy
pip3 install wavio
export FLASK_APP=app.py
flask run