“mysql_config not found” installing MySQL-python with MacPorts

 4 Responses »
Oct 152013
 

UPDATE 2013-10-16: Macports now has a mysql_select package that cleanly solves this problem. Run the following and then pip will be able to find mysql_config without issue.

sudo port install mysql_select
sudo port select mysql mysql56

Using pip to install MySQL-python (aka MySQLdb) gives the error “EnvironmentError: mysql_config not found” when run on a system where MySQL has been installed via MacPorts. The solution is to tell the installer where mysql_config can be found by appending “mysql_config = /opt/local/bin/mysql_config5” to site.cfg. Assuming use of virtualenvwrapper (highly recommended!):

pip install --no-install MySQL-python
... ignore errors ...
VENV=$(dirname $(dirname $(which python))); echo "mysql_config = /opt/local/bin/mysql_config5" >> $VENV/build/MySQL-python/site.cfg
pip install --no-download MySQL-python

virtualenvwrapper recipe

 No Responses »
Oct 152013
 

Virtualenvwrapper is a great way to manager Python environments. This is a quick cheatsheet for using it.

Setup

Get Python

On OS X:
<install MacPorts>

sudo port install python27
sudo port select python python27

Install standard packages

 sudo easy_install pip
sudo pip install virtualenv
sudo pip install virtualenvwrapper
sudo pip install yolk

Configure virtualenvwrapper

In your .zshrc, .bashrc, etc, add:

source $(dirname $(which python))/virtualenvwrapper.sh

In your .zshenv, .bashrc, etc., add:

export WORKON_HOME=~/.virtualenvs

Create .virtualenvs directory:

 mkdir $WORKON_HOME

List available environments

workon

Make an environment

Note: environments are stored in your ~/$WORKON directory and you can issue these commands from anywhere.

mkvirtualenv myproject

Select an environment

workon myproject

Within an environment, pip install packages as usual.

See the Virtualenvwrapper docs for more information.