Python In Practice - 15 Projects to Master Python - isinstance( )

The video tutorial explains how to use the isinstance function in Python to check if an object is an instance of a specific class or subclass. It demonstrates this with examples using numbers to check if they are integers or floats, and extends the concept to custom-defined classes. The tutorial highlights the versatility of isinstance in verifying object types and class membership.

What is the purpose of using the 'isinstance' function in programming?

How can you check if a variable is of a specific class or subclass?

Describe how you would implement a function to check if a number is an integer or a float.

What would be the output of the program if you check if the number 12 is a float?

Explain how custom defined classes can be checked using the 'isinstance' function.