These are notes on how I started a project using Python, Qt, and Windows.

References

Goals

We're working with Windows, in Windows.
I make GPL software on my own time. I don't want to deal with licensing other than that which makes my code open. If I were working for a company, I'd have to navigate and get the right licenses purchased first.
I want to make this distributable via an .exe, maybe with an installer.
If possible, I want to leave the window open for making packages for other platforms like Linux and MacOS.

(Valid as of 2015-06-08)

Go to http://www.qt.io/download/
Choose "Community" by clicking on "Download" below that.
Read the terms carefully. This is LGPL code.
Download the qt-unified-windows-blah-blah.exe file.
Open it.
You don't have to register. Just click "Next" past the registration screen.
Keep clicking next until it asks where to install it. I chose "D:\Qt" since my C drive is an SSD with limited capacity.

Ugh... I can't seem to get Qt 4.8 anymore... giving up.