Real Python: Python Modulo: Using the % Operator

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Python supports a wide range of arithmetic operators that you can use when working with numbers in your code. One of these operators is the modulo operator (%), which returns the remainder of dividing two numbers. Modular operations are useful to check if a number is even or odd, simplifying cycling through data, and doing non-decimal based units conversion.

In this course, you’ll learn:

  • How modulo works in mathematics
  • How to use the Python modulo operator with different numeric types
  • How Python calculates the results of a modulo operation
  • How to override .__mod__() in your classes to use them with the modulo operator
  • How to use the Python modulo operator to solve real-world problems

The code in this course was tested with Python 3.9.0, % has not change much and older versions should be compatible.

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