ActivePython
A distribution of Python designed to be easy to install and use on Windows, Linux, and Solaris. Includes a package manager for installing and removing language extensions, and a suite of Windows tools, such as the Pythonwin IDE, the PythonCOM system and interfaces to the Windows registry and event log.
Jython
A 100 % Pure Java implementation of the Python language.
Pocket PC Python
Python 2.2+ for the Microsoft Pocket PC.
PyPy reimplementing Python in Python
Development of a highly flexible Python implementation.
Python 2.2.1 for EPOC Release 5
Port of python on Epoc Release 5 machines: Psion 5mx, 5mx Pro, Revo, Netbook, Ericson MC218, Oregon Osiris. It may run on Epoc Release 3 Hardware (Series 5 classic).
Python for .NET Research
An exploratory implementation of the Python language for the .NET Framework.
Python for PalmOS
A half baked port of Python 2.3.2 to PalmOS.
Python on AS/400
Per Gummedal ported version 2.2.2 of Python to this platform.
Python on the iPAQ HOW-TO
Programming in Python on the iPAQ.
Python.org Download Page
Master site for the Python source code. Binaries for Windows 3.1/95/98/NT and Macintosh are also available.
Python/iX
A port of the Python language to HP's MPE/iX operating system, allowing MPE/iX specific modules (like TurboIMAGE) to be accessed from Python scripts.
PythonD
A 32-bit, multi-threaded, networking- and OpenGL-enabled Python interpreter for DOS and Windows.
Stackless Python
An experimental implementation that supports continuations, generators, microthreads, and coroutines.
Windows CE
Python 1.5.2 port for Windows CE 2.0 (unsupported).