pg_config executable not found

Question

I am having trouble installing psycopg2. I get the following error when I try to pip install psycopg2:

Error: pg_config executable not found.

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Answer 1

Here, for OS X completeness: if you install PostgreSQL from MacPorts, pg_config will be in /opt/local/lib/postgresql94/bin/pg_config.

When you installed MacPorts, it already added /opt/local/bin to your PATH.

So, this will fix the problem: $ sudo ln -s /opt/local/lib/postgresql94/bin/pg_config /opt/local/bin/pg_config

Now pip install psycopg2 will be able to run pg_config without issues.