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Python Classes and Dataclasses Cheat Sheet

A 2-page reference for classes, dataclasses and typing: 14 short entries with copy-ready code.

ForDevelopers

python-classes-and-dataclasses-cheat-sheet.pdfShowing 27 of 107 lines
// A basic class
class User:
    def __init__(self, name):
        self.name = name

    def greet(self):
        return f"Hi, {self.name}"

// Dunder methods
class Point:
    def __init__(self, x, y):
        self.x, self.y = x, y

    def __repr__(self):
        return f"Point({self.x}, {self.y})"

    def __eq__(self, other):
        return (self.x, self.y) == (other.x, other.y)

// Dataclass
from dataclasses import dataclass

@dataclass
class Item:
    name: str
    price: float = 0.0

What's inside

Format
PDF, Markdown
Contents
14 sections · 2 pages
Version
1.0 · Updated 3 Oct 2026
Licence
Commercial What this means
Checked
Checked before it ships
  • python-classes-and-dataclasses-cheat-sheet.pdfPDF · 20 KB
  • python-classes-and-dataclasses-cheat-sheet.mdMarkdown · 2 KB
  • LICENSE.txtadded to every download

About this item

A compact, printable reference for classes, dataclasses and typing. Each of the 14 entries has a one-line explanation and a small example you can paste into your editor. The PDF uses a two-column A4 layout designed to sit next to your keyboard, and the same content ships as Markdown so you can search it or drop it into your notes. Every Python example targets Python 3.12.

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