null object in Python?

Question

Can someone tell me how to refer a null object in Python?

Answer 1

None is defined for null object in Python and use is operator to check:

>>> foo is None
True
>>> foo = 'bar'
>>> foo is None
False

Answer 2

It's not called null as in other languages, but None. There is always only one instance of this object, so you can check for equivalence with x is None (identity comparison) instead of x == None, if you want.

You can use the following video tutorials to clear all your doubts:-

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