The Python cheat sheet is a one-page reference sheet for the Python 3 programming language.

This Python cheat sheet—part of our Complete Guide to Python—provides a quick reference for essential Python concepts, focusing on practical use cases for data analysis and programming. It covers fundamental topics like variables, arithmetic, data types, and expands into key areas such as lists, dictionaries, functions, and control flow.

Mar 3, 2025 · Python Functions. Python Functions are a collection of statements that serve a specific purpose. The idea is to bring together some often or repeatedly performed actions and construct a function so that we can reuse the code included in it rather than writing the same code for different inputs over and over.

Mar 14, 2025 · Master essential Python commands and data types. This guide covers everything from basic operations and data handling to loops, functions, modules, and classes, helping you quickly navigate common Python programming tasks.

2 days ago · For C or C++ programmers, two additional manuals exist: Extending and Embedding the Python Interpreter describes the high-level picture of how to write a Python extension module, and the Python/C API Reference Manual describes the interfaces available to C/C++ programmers in detail. 1. Introduction. 1.1. Alternate Implementations. 1.2. Notation. 2.

Today, we’ll present a Python cheat sheet, which will help you use Python with ease. By the end, you’ll be a pro at using everything about this programming language, including Python syntax. If you have a basic understanding of Python and want an easy reference while developing Python applications, this Python 3 cheat sheet is for you.

list = [ value1, value2, ... dictionary = { key1:value1, key2:value2, ...} Legend: x,y stand for any kind of data values, s for a string, n for a number, L for a list where i,j are list indexes, D stands for a dictionary and k is a dictionary key. returns the type of x (string, float, list, dict ...)

Functions are blocks of reusable code that perform a single task. Youuse def todefine(orcreate)anewfunctionthenyoucallafunctionbyaddingparameters to the function name.

print("D[{}]={}".format(k,v)) # D[f1]=10 D[f2]=20. """Example documentation string. This function does not do anything special. """ # arg1 is a positional argument # args is a list # dic is a dictionary of named arguments. info = sys.exc_info() print(info[0]) print(info[1]) traceback.print_tb(info[2]) raise else: ... finally: ... ID = 0

Python Basics Quick Reference To use Python in interactive mode, at the >>> prompt, type a command and press Enter. Example: >>> print 'Hello World'