Yesterday we tried to upgrade our mozmill-ci cluster to the previously released Mozmill 2.0.1. Sadly we failed on the OS X 10.6 machines and had to revert this change. After some investigation I found out that incompatibility issues between Python 2.6 and 2.7.3 were causing this problem in mozprofile. Given the unclear status of Python 2.6 support in mozbase, and a talk in the #ateam IRC channel, I have been advised to upgrade those machines to Python 2.7. I did so after some testing, also because all other machines areContinue readingMozmill speed improvements after upgrading Python from 2.6 to 2.7.3