Tips for Developers Upgrading to Mountain Lion

If you are a developer using Python for any purposes (warning: you could be using without knowing), do take heed.

Mountain Lion Kills Python

As discussed in my previous post, upgrading to Mountain Lion will cause many of Python packages not to work. I have found out that /Library/Python/2.7/site-packages/ was cleared! The site-packages directory stores all the third party libraries that you have installed eg. virtualenv, django, pip, mysql, etc..

I have yet to understand the reason for Apple doing that warehouse clearance..

However, a tip for you:

If you are upgrading to Mountain Lion, backup /Library/Python/2.7/site-packages/ to Desktop first. After upgrading, you can copy site-packages back.

 

UPDATE:

I also encountered missing path to mysql and mysql_config commands. Somehow PATH got altered. Here’s the fix:

export PATH=$PATH:/usr/local/mysql/bin/
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