This Python tutorial is about the isinstance() function, which you can use to reliably check data types.
You'll learn how to check whether a variable is a specific type—for example, int or float—and how to query multiple types simultaneously.
The example shows you how to use simple type checking to write more robust functions and validate input.
This principle is useful in many areas of programming, such as processing user input or building larger projects where data needs to be reliably validated.
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