Tip on the "Late Binding Closures" section

The two solutions in "What You Should Do Instead" are certainly correct, while there's another solution in that special case, one can simply change

return [lambda x : i * x for i in range(5)]

to

return (lambda x : i * x for i in range(5))

in other words, one can create a generator, rather than a list, to postpone the time when cell contents be evaluated. Actually, a more essential test code could be

for multiplier in create_multipliers():
    print multiplier.__closure__[0].cell_contents

FYI.

Lee la sección "Late Binding Closures", especialmente "What You Should Do Instead", y compara el ejemplo de generador propuesto con las explicaciones existentes. Ejecuta el bucle create_multipliers() proporcionado para verificar el comportamiento del closure. Se considera terminado cuando la documentación presenta correctamente cualquier alternativa válida e incluye un ejemplo claro que la respalde.