Question

python

Answer 1

Declaring variables as null or evaluating an expression as null in if condition (or other cases) is quite common practice as doing programming in different languages.

This is generally done by using the keyword ‘null’. However, in Python, there is no such keyword as null. Instead, you may use the ‘None’ keyword, which is an object.

There's no null in Python, instead there's None . As stated already the most accurate way to test that something has been given None as a value is to use the is identity operator, which tests that two variables refer to the same object.