There is no sure-er mark of a Python novice than the "2 to 3 conversion is trivial" myth. Python has a long history, there are lots of versions of 2, there are

There is no sure-er mark of a Python novice than the "2 to 3 conversion is trivial" myth. Python has a long history, there are lots of versions of 2, there are complicated data processing changes from all versions of 2 to all versions of 3. Not every conversion is hard, but they can be an enormous amount of work.