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سؤال 9

For Python's `None` value, which statements are true? Select all that apply.

  1. Its exact type is `NoneType`.پاسخ درست
  2. Every use of `None` designates the same object.پاسخ درست
  3. It is the same value as the empty string.
  4. A fresh `None` object is created each time it is written.

توضیح

`None` is the sole instance of `NoneType`, and all uses of it refer to the same singleton object. An empty string and numeric zero are separate values that may be falsy, but neither is another spelling of `None`.

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شروع تمرین
سؤال 9: For Python's `None` value, which statements are true?… · Python Fundamentals · Questena