[Tutor] Surprising behaviour of optional argument

[Alan Gauld]

On 17/07/14 23:00, Jose Amoreira wrote:

> Aha, the object that stores the default value for the optional argument
> is created at the time of the execution of the function definition and
> mutable objects do mutate, so that's that. It makes a lot of sense.

Yes, think of it as a feature, not a bug :-)


-- 
Alan G
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