title: Error Installing Psycopg2 on MacOS 10.9.5
body: <p>I'm trying to install <code>Psycopg2</code> on my Macbook, but I am getting an error. I found a lot of the same questions on StackOverflow but no answer seems to work. <br />
  I'm using:</p>
  <p>OS: MacOS 10.9.5 <br />
  Python Version: 3.4.3</p>
  <p>My error code is:</p>
  <pre><code>Running setup.py egg_info for package psycopg2  Error: pg_config
  executable not found.
  
  Please add the directory containing pg_config to the PATH or specify
  the full executable path with the option:
  
  python setup.py build_ext --pg-config /path/to/pg_config build ...
   
  or with the pg_config option in 'setup.cfg'.  Complete output from
  command python setup.py egg_info:  running egg_info
  
  writing pip-egg-info/psycopg2.egg-info/PKG-INFO
   
  writing top-level names to
  pip-egg-info/psycopg2.egg-info/top_level.txt
   
  writing dependency_links to
  pip-egg-info/psycopg2.egg-info/dependency_links.txt
   
  warning: manifest_maker: standard file '-c' not found
   
  Error: pg_config executable not found.
  
  Please add the directory containing pg_config to the PATH or specify the full executable path with the option:
   
  python setup.py build_ext --pg-config /path/to/pg_config build ...
   
  or with the pg_config option in 'setup.cfg'.
   
  ---------------------------------------- 
  Command python setup.py egg_info failed with error code 1 in
  /Users/sg/build/psycopg2 Storing complete log in
  /Users/sg/Library/Logs/pip.log
  </code></pre>