Backend DevelopmentPython TutorialHow to Resolve \'pg_config\' Errors During psycopg2 Installation with \'pip\'?How to Resolve \'pg_config\' Errors During psycopg2 Installation with \'pip\'?
How to Install psycopg2 with "pip" on Python
Problem
I'm using virtualenv to install the psycopg2 package, but I'm encountering errors related to the "pg_config" executable. The installation process hangs at the setup.py phase, leaving me wondering if I'm missing any crucial steps.
Answer
Installing psycopg2 via PyPI Package
- Option 1: Install the psycopg2-binary PyPI package, which provides Python wheels for Linux and Mac OS. This eliminates the need for building the package from source.
pip install psycopg2-binary
Installing Prerequisites for Building psycopg2
- Option 2: If binary wheels are not available for your system, you can install the prerequisites for building psycopg2 from source. The specific commands vary depending on your operating system and Python version.
Debian/Ubuntu
| Python Version | Command | Note |
|---|---|---|
| Default Python 3 | sudo apt install libpq-dev python3-dev | |
| Python 3.x | sudo apt install libpq-dev python3.x-dev | Substitute x in the command |
| Python 2 | sudo apt install libpq-dev python-dev |
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