Why Can't Psycopg2 Find pg_config Even Though It's in My PATH?

pg_config Executable Not Found during psycopg2 Installation

Encountering the "pg_config executable not found" error when installing psycopg2 via pip can be perplexing, even when pg_config seems to be present in your PATH. This issue arises due to the psycopg2 package relying on the header files provided by the postgresql-devel package (libpq-dev for Debian/Ubuntu or libpq-devel for Centos/Fedora/Cygwin/Babun).

To resolve this issue, install the postgresql-devel package using your system's package manager. For example, on Fedora or CentOS, you would run:

sudo yum install postgresql-devel

Once the package is installed, psycopg2 should recognize the pg_config executable and complete the installation without encountering the aforementioned error.

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