I remember hearing about some big breaking changes in the 3.x series of !python. What I mean is, like from 3.4 to 3.5 there were some breaking changes. I cannot, however, remember what those are, or immediately find answers with a search tool. I use python so infrequently, that it just hasn't been an issue until now. Does anyone know what those changes I am thinking about might have been? I do think it was either 3.4 to 3.5 or 3.5 to 3.6. !sysadmin