This site hosts the "traditional" implementation of Python (nicknamed CPython). A number of alternative implementations are available as well and several vendors have repackaged CPython to include more libraries or specialized it for a particular application.| Python.org
Learn what isinstance() does in Python and how to use this built-in function to check an object's type. Discover its practical uses along with key limitations.| realpython.com
In this detailed Python tutorial, you'll explore the CPython source code. By following this step-by-step walkthrough, you'll take a deep dive into how the CPython compiler works and how your Python code gets executed.| realpython.com
In this tutorial, you'll learn how and when to use the len() Python function. You'll also learn how to customize your class definitions so that objects of a user-defined class can be used as arguments in len().| realpython.com
In this tutorial, you'll learn about numbers and basic math in Python. You'll explore integer, floating-point numbers, and complex numbers and see how perform calculations using Python's arithmetic operators, math functions, and number methods.| realpython.com
This article explores Python modules and Python packages, two mechanisms that facilitate modular programming.| realpython.com
In this tutorial, you'll learn how to create and use full-featured classes in your Python code. Classes provide a great way to solve complex programming problems by approaching them through models that represent real-world objects.| realpython.com
In this tutorial, you'll learn how to use Python's rich set of operators and functions for working with strings. You'll cover the basics of creating strings using literals and the str() function, applying string methods, using operators and built-in functions with strings, and more!| realpython.com
In this tutorial, you'll learn how to define and call your own Python function. You'll also learn about passing data to your function, and returning data from your function back to its calling environment.| realpython.com
In this tutorial, you'll learn the key characteristics of lists and tuples in Python, as well as how to define and manipulate them. When you're finished, you'll have a good feel for when to use a tuple vs a list in a Python program.| realpython.com
Master real-world Python skills with a community of experts.| realpython.com
The Python interpreter has a number of functions and types built into it that are always available. They are listed here in alphabetical order.,,,, Built-in Functions,,, A, abs(), aiter(), all(), a...| Python documentation
