Message 279525 - Python tracker

Could this commit be the reason why the attached code behaves differently in 2.7 and 3.5.2? This is the code used by Emacs' default Python mode to do completion; with it (python -i completion.py), pressing "tab" on a plain prompt offers candidates in Python 2.7, but it doesn't in Python 3.5.2 (instead, it inserts a tab).