1/ python3 2/ pip 3/ pandas 4/ Flask
Link: https://www.liquidweb.com/kb/how-to-install-pip-on-centos-7/
yum -y update yum -y install python-pip
python3 -m pip install pandas
yum install python3-pandas
Link: https://github.com/pallets/flask/
python3 -m pip install -U Flask
Thanks, i use the step to run flask python3 at my mac, that work ! thanks bro.