Hello, I found out that the installed Python2 version on my machine (OS X Yosemite) is 2.7.6 but the latest is 2.7.8. How can I update Python version to the latest? I also found inside /System/Library/Frameworks/Python.framework/Versions folder that Python 2.3, 2.5 and 2.6 are also installed. Can I delete these version? Thanks!