OOP & classes
Classes, instances, methods, dataclasses, and object-oriented design in Python.
Define an Enum for Status Codes in Python
Create a readable StatusCode enum with HTTP-style status values and iterate over its members using the standard library Enum class.
from enum import Enum
class StatusCode(Enum):
OK = 200
CREATED = 201
BAD_REQUEST = 400
UNAUTHORIZED = 401
NOT_FOUND = 404
INTERNAL_ERROR = 500
if __name__ == "__main__":
code = StatusCode.NOT_FOUND
print(f"Name: {code.name}")
print(f"Value: {code.value}")
print(f"Is it OK? {co…How to Build a Context Manager Class in Python
Create a reusable context manager class that opens and automatically closes resources using the with statement.
class FileResource:
def __init__(self, filename, mode='r'):
self.filename = filename
self.mode = mode
self.file = None
def __enter__(self):
self.file = open(self.filename, self.mode)
return self.file
def __exit__(self, exc_type, exc_value, traceback):
if se…How to Create Static Methods in a Python Class
Shows how to define and call static methods inside a class using @staticmethod, with utility functions that don't need instance or class state.
class MathUtils:
"""Utility class demonstrating static methods."""
@staticmethod
def add(a, b):
"""Return the sum of two numbers."""
return a + b
@staticmethod
def multiply(a, b):
"""Return the product of two numbers."""
return a * b
@staticmethod
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OOP & classes — Python code examples
What you will find here
This page collects oop & classes snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.
Samples vs tutorials and challenges
Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.