Mountain Lion update and mercurial libraries python

Question

I updated the mac to Mountain Lion (10.8) and now the project I developed with Python and Google App Engine does not work.

GAE libraries are found, while standard Python

Answer 1

I had a similar problem to this last night after upgrading to OX 10.9 Mavericks. I had tried brew install hg and brew update but they didn't work, as everyone's systems are different if you're running homebrew I would recommend running brew doctor to see what your particular issue is, in my case I had the following;

Warning: You have unlinked kegs in your Cellar

Leaving kegs unlinked can lead to build-trouble and cause brews that depend on those kegs to fail to run properly once built. Run brew link on these: mercurial

So to fix my mercurial issue I ran;

brew link --overwrite mercurial