no module psycopg2

# For quick install
pip install psycopg2-binary

# For production-ready install
pip install psycopg2
# But it will fail if build prerequesties are not met:
# https://www.psycopg.org/docs/install.html#build-prerequisites

pip install psycopg2 

#Use psycopg2-binary instead of psycopg2.

pip install psycopg2-binary