Until recently I relied on OS X native python for anything 2.7.x and Homebrew’s python3 for anything 3.x.x. As already implied by the lots of ‘x’-es: Far from ideal. But it worked. Until I accidentally ran a brew upgrade which put my python 3 version to a bleeding edge 3.6.0. Newer than what’s provisioned on our stack and besides that I ran into some errors when installing requirements in a new virtualenv that I suspected to be related to the python version bump.…