Rewrite own PyUnit in Python 3
Rewrite Python cookbook of doctest in Python 3
Rewrite Python cookbook of context manager in Python 3
Rewrite Python cookbook of file in Python 3
Rewrite Python cookbook of Find & Sort algorithms in Python 3
Rewrite Python cookbook of unpacking iterable in Python 3
Rewrite Python cookbook of function arguments in Python 3
Rewrite Python cookbook of network in Python 3