[PySide] PySide 1.2.1 Windows x86_64/Python 3.3 installer doesn't find Python 3 and doesn't allow manual path input

[Jonas Thiem]

Hi,

The PySide 1.2.1 Windows x86_64/Python 3.3 installer doesn't find a
python 3.3 and spits out "Python version 3.3 is needed, which was not
found in registry". Ok interesting, but why can I not enter a path
manually? (it doesn't let me..) And the detection should be probably
fixed to work with the official Python windows installer.

Steps to reproduce:
1.) Install http://www.python.org/ftp/python/3.3.5/python-3.3.5.amd64.msi
and pick "for all users" and C:\Python33\
2.) Try to install
http://download.qt-project.org/official_releases/pyside/PySide-1.2.1.win32-py3.3.exe
and see it fail

A fix for both of those issues (lack of manual path input in case of
failure, failing automatic detection with official python installer)
would be neat.

Regards,
Jonas Thiem