Here's something I was just looking for that isn't on the list
I was just putting together a pen drive with various tools, and I wanted to put a Python development environment (meaning not just the interpreter itself with a text editor like SciTE, but an actual IDE with debugging, etc.)
I've found
PortablePython, but this doesn't have an IDE
per se.
There's also
Movable Python, which does have an IDE, but costs (minimal) money. Anybody have experience with this?