pip install mysqlclient error

First install python 3.6.5, then run

pip install mysqlclient==1.3.12

For me, it was a mixture of an old setup tools and missing packages

pip install --upgrade setuptools

apt install gcc libssl-dev

Try download and install from wheel instead. Take note of your python version and download the correct one.

https://www.lfd.uci.edu/~gohlke/pythonlibs/#mysqlclient