ESL Python

I am a Beginner . I need a help on these issue
MY project make ai caller agent

so i am setting up the sip call flow and using ESL to connect with the ai agent on runtime

import ESL not working
undefined symbol _ZN8ESLeventC1EPS_

also ESL.so and _ESL.py not automatically add to the /usr/local/lib
libesl.so is missing and not automtically added
Need to manually make links.