Thonny is a Python integrated development environment designed for people learning to program. Its uncluttered interface makes it particularly suitable for students, teachers and anyone approaching Python for the first time.
Unlike conventional IDEs that primarily concentrate on writing and managing software, Thonny places considerable emphasis on helping users understand how their programs execute. Its debugger visualises individual statements, expressions, function calls and variable values, making abstract programming concepts easier to follow.
The environment provides a source-code editor and interactive Python shell, together with tools for managing packages and exploring Python objects. Beginners can start with a straightforward workspace and enable more advanced facilities as their experience grows.
This is free and open source software.
Key Features
- Beginner-friendly interface that initially hides unnecessary controls and advanced options.
- Step-through debugger executes programs one statement at a time without requiring breakpoints.
- Expression evaluation visualisation shows how Python calculates intermediate results.
- Function-call visualisation displays local variables and execution context in separate windows.
- Variables view shows how program execution changes values and objects.
- Alternative object representations explain references, identity and memory relationships.
- Distinguishes local and global variable occurrences to help explain Python scopes.
- Syntax error highlighting identifies common mistakes such as unclosed strings and parentheses.
- Code completion assists with discovering functions, methods and Python APIs.
- Interactive Python shell allows commands and expressions to be evaluated immediately.
- Graphical package manager simplifies managing additional Python libraries.
- Provides access to a system shell configured for the selected Python interpreter.
- Customisable editor and interface themes, with support for extensions.
- Cross-platform support – runs on Linux, macOS, and Windows.
Website: thonny.org
Support:
Developer: Aivar Annamaa and contributors
License: MIT License
Thonny is written in Python. Learn Python with our recommended free books and free tutorials.
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