pre requisite:
sudo apt-get install python3 python3-dev python3-pip
sudo apt-get install libffi-dev libssl-dev
sudo pip3 install -U setuptools
sudo pip3 install -U virtualenv
git clone https://github.com/Condorello/Domoticz-Xiaomi-Fan-ZA4.git xiaomi-fanza4
cd xiaomi-fanza4
virtualenv -p python3 .env
source .env/bin/activate
pip3 install -r pip_req.txt