Problem installing PySide with easy_install

[piotr.dobrogost]

I get the following error
@
Z:>easy_install PySide
install_dir z:\python26\Lib\site-packages
Searching for PySide
Reading http://pypi.python.org/simple/PySide/
Reading http://www.pyside.org
Reading http://www.pyside.org/files/pkg/
Best match: pyside pkgsetup-0.4.2
Downloading http://www.pyside.org/files/pkg/pyside-pkgsetup-0.4.2.zip
Processing pyside-pkgsetup-0.4.2.zip
error: Couldn't find a setup script in c:\users\piotr\appdata\local\temp\easy_install-4juwwg\pyside-pkgsetup-0.4.2.zip@

[piotr.dobrogost]

The problem was caused by 64bit Python installation.
Using 32bit Python solved the problem.