* [break](http://greenteapress.com/thinkpython/html/thinkpython008.html#toc80)
* [range](https://docs.python.org/3/library/functions.html#func-range)
* [classi e oggetti](http://greenteapress.com/thinkpython/html/thinkpython016.html)
* [eccezioni](https://docs.python.org/3/tutorial/errors.html#handling-exceptions)
* [Guida per continuare lo studio del Python](http://greenteapress.com/thinkpython/html)
* Esempi di programmazione ad oggetti: [classe_conto.py](classe_conto.py), [classe_animale.py](classe_animale.py)