I'm using Mac and installed Odoo v8 in Yosemite 10.10 and works fine until today morning I upgraded the OS X to El Capitan 10.11 and server is error when I try to start it. I'm using Postgre SQL 9.4.4.  Error is shown as below:

File "/Users/Hok/Odoo/v8/openerp/models.py", line 57, in <module>

import psycopg2

File "/Library/Python/2.7/site-packages/psycopg2/__init__.py", line 50, in <module>

from psycopg2._psycopg import BINARY, NUMBER, STRING, DATETIME, ROWID

ImportError: dlopen(/Library/Python/2.7/site-packages/psycopg2/_psycopg.so, 2): Library not loaded: libpq.5.dylib

Referenced from: /Library/Python/2.7/site-packages/psycopg2/_psycopg.so

Reason: unsafe use of relative rpath libpq.5.dylib in /Library/Python/2.7/site-packages/psycopg2/_psycopg.so with restricted binary

How to fix it?