Message 140897 - Python tracker
The itertools fixer (izip -> zip, among others), fails for the following code: from itertools import izip print msg % str(bool(symbol_swapped) and list(izip(*swap_dict).next()) or symbols) It gets converted to: print(msg % str(bool(symbol_swapped) and list(next(izip(*swap_dict))) or symbols)) (note how izip is still there) I've worked aroudn this by introducing tmp = izip(...) and using that, but it'd be nice if 2to3 caught it by default.