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

I'm going to leave this here for the next unfortunate soul who can't get around this problem despite all the provided solutions. Simply use sudo pip3 install psycopg2-binary

Answer 2

Just solved the problem in Cent OS 7 by:

export PATH=$PATH:/usr/pgsql-9.5/bin

make sure your PostgreSql version matches the right version above.

Answer 3

sudo yum install postgresql-devel (centos6X)

pip install psycopg2==2.5.2

Answer 4

On alpine, the library containing pg_config is postgresql-dev. To install, run:

apk add postgresql-dev

Answer 5

Ali's solution worked for me but I was having trouble finding the bin folder location. A quick way to find the path on Mac OS X is to open psql (there's a quick link in the top menu bar). This will open a separate terminal window and on the second line the path of your Postgres installation will appear like so:

My-MacBook-Pro:~ Me$ /Applications/Postgres93.app/Contents/MacOS/bin/psql ; exit;

Your pg_config file is in that bin folder. Therefore, before installing psycopg2 set the path of the pg_config file:

PATH=$PATH:/Applications/Postgres93.app/Contents/MacOS/bin/

or for newer version:

PATH=$PATH:/Applications/Postgres.app/Contents/Versions/9.3/bin

Then install psycopg2.

Answer 6

On Windows, You may want to install the Windows port of Psycopg, which is recommended in psycopg's documentation.