Check if value is none Python | Example code

Use “is operator” to check if the value is none in Python, like this:-

if variable is None:

Since None is the sole singleton object of NoneType in Python, we can use “is operator” to check if a variable has None in it or not.

Example check if the value is none Python

Simple example code. If the variable type is None then print its value and type.

a = None
if a is None:
    print(a)
    print(type(a))

Output:

Check if value is none Python

How to Python check if an object is None

Example code of test if the object is NoneType python.

if variable is None:

Complete code.

a = None
if a is None:
    print("I am NO ONE")

Output: I am NO ONE

Note:

  • None is a singleton object of the NoneType class.
  • None is not equal to anything except itself.
  • Use is or is not operator to compare None with other values.

Do comment if you have any doubts and suggestions on this Python None topic.

Note: IDE: PyCharm 2021.1.3 (Community Edition)

Windows 10

Python 3.7

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.


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