Reference library

Python Code
Samples

Copy-ready Python snippets by topic and difficulty — short, focused, and runnable in the browser editor.

1 match

How to Implement the Prototype Pattern with Deep Copy in Python

Implements the Prototype design pattern using copy.deepcopy to clone complex objects without sharing mutable state.

import copy
from dataclasses import dataclass, field
from typing import List

@dataclass
class Engine:
    horsepower: int

@dataclass
class Car:
    brand: str
    engine: Engine
    accessories: List[str] = field(default_factory=list)

def clone_prototype(car: Car) -> Car:
    return copy.deepcopy(car)

if __name__ …

13 0 Open

Browse by section

Each section groups closely related Python snippets.

Guide: free Python code samples library

Copy-ready Python snippets for learners and developers

PythonSkillset code samples are short, focused examples organised by topic and difficulty. Every snippet is server-rendered HTML — readable by search engines and easy to copy. Open any sample, read the notes, copy the code, then press Try in editor to run it in the browser with Pyodide.

How to use this library

Pick a topic section — strings, lists, files, functions, and more
Open a sample, read How it works, and copy the code block
Run it in the IDE, tweak values, then take a related quiz or tutorial lesson

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.

Free online Python IDE Write and run Python in your browser — no install. Free Python code formatter Format with autopep8 — side-by-side PEP 8 cleanup.