Thonny

Thonny is a free and open-source integrated development environment for Python that is designed for beginners. It was created by Aivar Annamaa, an Estonian programmer. It supports different ways of stepping through code, step-by-step expression evaluation, detailed visualization of the call stack and a mode for explaining the concepts of references and heap.

Features

 * Line numbers
 * Statement stepping without breakpoints
 * Live variables during debugging
 * Stepping through evaluation of the expressions (expressions get replaced by their values)
 * Separate windows for executing function calls (for explaining local variables and call stack)
 * Variables and memory can be explained either by using simplified model (name → value) or by using more realistic model (name → address/id → value)
 * Simple pip GUI
 * Support for CPython and MicroPython
 * Support for running and managing files on a remote machine via SSH
 * Possibility to log user actions for replaying or analyzing the programming process

Availability
The program works on Windows, macOS and Linux. It is available as a binary bundle including the recent Python interpreter or pip-installable package. It can be installed via the operating-system package manager on Debian, Raspberry Pi, Ubuntu, and Fedora.

Reception
Thonny has received favorable reviews from Python and computer science education communities. It has been a recommended tool in several programming MOOCs. Since June 2017 it has been included by default in the Raspberry Pi's official operating system distribution Raspberry Pi OS.