IronPython is an implementation of the Python programming language running under .NET and Silverlight. It supports an interactive console with fully dynamic compilation. It's well integrated with the rest of the .NET Framework and makes all .
Open Source Python Alternatives
The best open source alternative to Python is Java. It's not free, so if you're looking for a free alternative, you could try Java or Ruby. If that doesn't suit you, our users have ranked more than 50 alternatives to Python and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Python are R (programming language), PHP, Rust and Lua.
Alternatives list

Stackless Python is an enhanced version of the Python programming language. It allows programmers to reap the benefits of thread-based programming without the performance and complexity problems associated with conventional threads.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Python

- 64 MicroPython alternatives
MicroPython aims to implement the Python 3.4 standard (with selected features from later versions) with respect to language syntax, and most of the features of MicroPython are identical to those described by the “Language Reference” documentation at docs.python.org.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- BSD
- Self-Hosted
- JavaScript
- FreeBSD
- OpenBSD

- 58 Squirrel (programming language) alternatives
Squirrel is a high level imperative, object-oriented programming language, designed to be a light-weight scripting language that fits in the size, memory bandwidth, and real-time requirements of applications like video games.

Raku unifies many great ideas that aren't usually found in other programming languages. While several other languages offer some of these features, none of them offer all.
- 62 FreeBASIC alternatives
FreeBASIC is a completely free, open-source, 32-bit BASIC compiler, with syntax similar to MS-QuickBASIC, that adds new features such as pointers, unsigned data types, inline assembly, object orientation, and many others.

- 46 Hack alternatives
Hack is a programming language for HHVM that interoperates seamlessly with PHP. Hack reconciles the fast development cycle of PHP with the discipline provided by static typing, while adding many features commonly found in other modern programming languages.
Comments about Hack as an Alternative to Python

- Hack is Free and Open Source
Quorum is a general purpose tool that we call an "evidence-based" programming language. It started as an interpreted language originally designed to be easier to hear through screen readers for blind or visually impaired users.
- 20 Pony language alternatives
Pony is an open-source, object-oriented, actor-model, capabilities-secure, high performance programming language.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux






















Hack is PHP and its Web-based