Python Practice › OOP Programs › Program 20

Class in a module, imported elsewhere

EasyOOP Programs · 20 of 48

Write a Python class in its own module and import it from another script.

Output

Approach

Save the class in shapes.py, then from shapes import Square.

Solution

Python

with open("shapes.py", "w") as f:    f.write("class Square:\n"            "    def __init__(self, side):\n"            "        self.side = side\n"            "    def area(self):\n"            "        return self.side ** 2\n") from shapes import Square print(Square(5).area())

Output

Line by line

Lines 1-6

Creates the module file so the example is self-contained; normally you would write shapes.py in your editor.

Line 8

Module-level import makes Square available in this script.

Learn the concept

New to this topic? Read the lesson, then come back.

Classes & Objects lesson → Inheritance lesson → Polymorphism & Encapsulation lesson →

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