error: command 'gcc' failed with exit status when installing psycopg2

[root@server01 ~]# easy_install psycopg2 Searching for psycopg2 Reading http://pypi.python.org/simple/psycopg2/  Reading http://initd.org/psycopg/  Reading http://initd.org/projects/psycopg2  Best match: psycopg2 2.4.5 Downloading http://initd.org/psycopg/tarballs/PSYCOPG-2-4/psycopg2-2.4.5.tar.gz  Processing psycopg2-2.4.5.tar.gz Running psycopg2-2.4.5/setup.py -q bdist_egg --dist-dir /tmp/easy_install-anWVvJ/psycopg2-2.4.5/egg-dist-tmp-cZbdtn no previously-included directories found matching 'doc/src/_build' In file included from psycopg/psycopgmodule.c:27: ./psycopg/psycopg.h:31:22: error: libpq-fe.h: No such file or directory In file included from psycopg/psycopgmodule.c:29: ... error: Setup script exited with error: command 'gcc' failed with exit status 1

ok

For the case of CentOS, I had this very same problem, that I solved installing these packages:

sudo yum install postgresql-libs sudo yum install postgresql-devel sudo yum install python-devel

only then, I was able to perform successfully:

sudo easy_install psycopg2