#speedtest module only work with Python 2.4-3.7 version. 
#so, if you install the package properly but face the same error several times,
please check the python version you are currently working on. It doesn't work on 
the python 3.8 or any later version or previous than 2.6 . 

installing speedtest module
pip3 install speedtest-cli

import module as 'import speedtest