Projects Using RPython

A very time-dependent list of interpreters written in RPython. Corrections welcome, this list was last curated in Nov 2016

Actively Developed:

• PyPy, Python2 and Python3, very complete and maintained, http://pypy.org
• Pydgin, CPU emulation framework, supports ARM well, jitted, active development, https://github.com/cornell-brg/pydgin
• RSqueak VM, Smalltalk, core complete, JIT working, graphics etc getting there, in active development https://github.com/HPI-SWA-Lab/RSqueak
• Pixie, ‘A small, fast, native lisp with “magical” powers’, jitted, maintained, https://github.com/pixie-lang/pixie
• Monte, ‘A dynamic language inspired by Python and E.’ has an rpython implementation, in active development, https://github.com/monte-language/typhon
• Typhon, ‘A virtual machine for Monte’, in active development, https://github.com/monte-language/typhon
• Tulip, an untyped functional language, in language design mode, maintained, https://github.com/tulip-lang/tulip/
• Pycket, a Racket implementation, proof of concept, small language core working, a lot of primitives are missing. Slow development https://github.com/samth/pycket
• Lever, a dynamic language with a modifiable grammar, actively developed, https://github.com/cheery/lever

Complete, functioning, but inactive

• Converge 2, complete, last release version 2.1 in Feb 2015, http://convergepl.org/
• Pyrolog, Prolog, core complete, extensions missing, last commit in Nov 2015, https://hg.sr.ht/~cfbolz/Pyrolog
• PyPy.js, compiles PyPy to Javascript via emscripten, with a custom JIT backend that emits asm.js code at runtime, http://pypyjs.org

Inactive (last reviewed Sept 2015):

• Topaz, Ruby, major functionality complete, library missing, inactive http://topazruby.com
• Rapydo, R, execution semantics complete, most builtins missing, inactive, http://bitbucket.org/cfbolz/rapydo
• Hippy, PHP, proof of concept, inactive, http://morepypy.blogspot.de/2012/07/hello-everyone.html
• Scheme, no clue about completeness, inactive, http://bitbucket.org/pypy/lang-scheme/
• PyGirl, Gameboy emulator, works but there is a bug somewhere, does not use JIT, unmaintained, http://bitbucket.org/pypy/lang-gameboy
• Javascript, proof of concept, inactive, http://bitbucket.org/pypy/lang-js
• An implementation of Notch’s DCPU-16, https://github.com/AlekSi/dcpu16py/tree/pypy-again
• Haskell, core of the language works, but not many libraries, inactive http://bitbucket.org/cfbolz/haskell-python
• IO, no clue about completeness, inactive https://bitbucket.org/pypy/lang-io
• Qoppy, an implementation Qoppa, which is a scheme without special forms: https://github.com/timfel/qoppy
• XlispX, a toy Lisp: https://bitbucket.org/rxe/xlispx
• RPySOM, an RPython implementation of SOM (Simple Object Model) https://github.com/SOM-st/RPySOM
• SQPyte, really experimental implementation of the SQLite bytecode VM, jitted, probably inactive, https://bitbucket.org/softdevteam/sqpyte
• Icbink, an implementation of Kernel, core complete, naive, no JIT optimizations yet, on hiatus https://github.com/euccastro/icbink