python pip install psycopg2 install error

Question

I did a simple pip install psycopg2 on mac system. It installed fine, but when I try to use psycopg2 I get the error:

Reason: Incompatible libra         


        

Answer 1

When trying to do a syncdb Postgres 9.1 and /psycopg2/_psycopg.so added a further error:

Library not loaded: @loader_path/../lib/libcrypto.dylib Referenced from: /usr/lib/libpq.5.dylib Reason: Incompatible library version: libpq.5.dylib requires version 1.0.0 or later, but libcrypto.0.9.8.dylib provides version 0.9.8

Solved by copying these six (6) files from:

LOCAL:/Library/PostgreSQL/9.1/lib/

libssl.1.0.0.dylib

libssl.a

libssl.dylib

libcrypto.1.0.0.dylib

libcrypto.a

libcrypto.dylib

to: LOCAL:/usr/lib

This was on Mac OSx 10.8.1 with a web in a virtualenv (1.8.2) and pgAdmin (1.14.3). Inside the virtualenv is:

Django==1.4

psycopg2==2.4.5

... etc... and now back to normal.