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.

阅读“Late Binding Closures”部分，尤其是“What You Should Do Instead”，并将建议的生成器示例与现有解释进行比较。运行所提供的 create_multipliers() 循环，以验证闭包行为。完成的标准是文档准确呈现任何有效的替代方案，并包含一个清晰的支持性示例。