Python Tools for Visual Studio
Ann: PTVS is now part of theAzure Machine Learning group!
An integrated environment for developing Python in Visual Studio by Microsoft
PTVS is a free/OSS plugin that turns Visual Studio into a Python IDE. PTVS supports CPython, IronPython, editing, browsing, Intellisense, mixed Python/C++ debugging, remote linux/MacOS debugging, profiling, multiple REPL’s, IPython, Django, Flask, Bottle, ... and cloud computing with client libraries for Windows, Linux and MacOS.
Video overview: http://www.youtube.com/watch?v=JNNAOypc6Ek&hd=1
Project home: http://pytools.codeplex.com