With an 8 year old codebase w/100s of thousands of lines of code and 100s of dependencies, this was no easy task. We had read many of the blog posts about the

With an 8 year old codebase w/100s of thousands of lines of code and 100s of dependencies, this was no easy task. We had read many of the blog posts about the Python 3 transition, and yet still had a number of surprises. Here were some of the more interesting ones.