PyQtX is the binary distribution of PyQt libraries for Mac OS X. Since Macs love static linking, and Qt is a big library, compiling PyQt on your own is a big hassle and promises many difficulties.
There are two distributions:
Complete versions contain Qt libraries, tools and stuff. You just need a Python on your system to be able to use them (Mac OS X default Python won't work, download and install from Python website)
They are considerably smaller (59 MB) in size than downloading Qt Libraries (190 MB) and PyQtX (10 MB) separately
Download a complete version unless you already have Qt Libraries installed on your system (Qt SDK installed in home folder doesn't count).
To check if you have Qt Libraries installed, do **which qmake** and if it's in **/usr/bin/qmake** you're good to go. Also the version should match.
Minimal version only includes compiled and linked PyQt libraries, which are linked against Qt libraries. You need to install Python, Qt Libraries and then install them. They enforce checks on both before performing an installation.
If you need Qt libraries, download from http://qt.nokia.com/downloads/downloads#qt-lib . Current minimal version prefers libs 4.8.2 . Note that Qt Libs is different from Qt SDK. Just download *release* libs, around 180 MB in size.
You also need Python. Download 2.7.x from official Python website. Download the version which contains both 32 bit and 64 bit version for PyQt to work. Current version is built upon Python 32/64 version 2.7.3.
That's all. After having those two, download the setup and run it. After it finishes, a sample application will run using PyQt. It's a window with some text on it. If it worked, you're good to go. If it didn't, file an issue here.
If you had any problems, file an issue or contact me at firstname.lastname@example.org