pip3 install awscli --upgrade --user aws --version aws configure, to input your key in order for the access to your aws account.
pip3 install boto3
pip install flask pip install flask-wtf pip install flask-sqlalchemy
pip3 install opencv-python sometimes, the missing of some lib leads to the failure to import cv2, we could possibly sudo apt-get install -y libsm6 libxext6 sudo apt-get install -y libxrender-dev
pip install pillow pip install pymysql