I don't think people realize how easy it is to run a Python2 and Python3 codebase at the same time if you have decent test coverage and run tox. Before PyCon S

I don't think people realize how easy it is to run a Python2 and Python3 codebase at the same time if you have decent test coverage and run tox. Before PyCon SurveyMonkey(my employer) will be deploying a major part of our application on Python3.