Why does using `arg=None` fix Python's mutable default argument issue?

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00:00 Question
01:17 Accepted answer (Score 21)
02:39 Answer 2 (Score 31)
05:55 Answer 3 (Score 17)
06:32 Answer 4 (Score 4)
06:58 Thank you

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Tags
#python #function #arguments #mutable

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