import psycopg2 error code example

Example 1: 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

Example 2: ModuleNotFoundError: No module named 'psycopg2'

pip install psycopg2

Example 3: psycopg2 error install

sudo apt install libpq-dev python3-dev
sudo apt install build-essential

Example 4: psycopg2 error

$ pip install psycopg2-binary