Refer to the Null Object in Python

Refer to the Null Object in Python

A null object does not exist in Python. However, there is a similar object that is called None, or we can say that the null object is the singleton none value.

This article will discuss how to refer to the None values in Python.

None is a built-in constant initiated at the start of Python and is available to be used in all modules, classes, etc. It is an instance of the NoneType class. In Python 2.4 and above, it is not possible to overwrite None.

We can Use the is identity operator to test for NoneType objects. It will give us the output as True or False whether the object is None or not.

For example,

object_name = None
print(object_name is None)

object_name = ' value_given'
print(object_name is None)

Output:

True
False

To determine the object is None or not, both is and == operators are used, but using == is not advisable since it may return empty objects and functions as None objects.