Usando las últimaspyinstaller en Windows 7 para hacer un exe independiente (-F), cuando ejecute el exe:

ImportError: no se puede importar el nombre QtGui

En el directorio de enganches de pyinstaller hay un manejo especial para PyQt4 aunque no para PySide.

Esperando una solución para esto o algo que probar.

Ambiente
Windows 7 de 64 bits
Python 2.7 de 32 bits
PYTHONHOME = c: \ python27
PYTHONPATH = c: \ python27 \ lib
PYTHONLIB = c: \ python27 \ libs \ python27.lib; c: \ python27 \ lib \ site-packages

Pasos
1. Añadir PySide desdehttp://releases.qt-project.org/pyside/1.1.1/PySide-1.1.1qt474.win32-py2.7.exe
2. descomprimirhttps://github.com/pyinstaller/pyinstaller/zipball/develop a c: \ pyinstaller1.5.1
3. Ejecute los comandos a continuación contra un archivo .py que contenga simplemente:

from PySide import QtGui

[... o QtCore o o.]

correr

c:\pyinstaller1.5.1>pyinstaller.py -F import_test.py
108 INFO: wrote c:\pyinstaller1.5.1\import_test.spec
171 INFO: Testing for ability to set icons, version resources...
296 INFO: ... resource update available
312 INFO: UPX is not available.
4321 INFO: checking Analysis
4382 INFO: checking PYZ
4430 INFO: checking PKG
4446 INFO: building because c:\pyinstaller1.5.1\build\pyi.win32\import_test\import_test.exe.manifest changed
4446 INFO: building PKG out00-PKG.pkg
16782 INFO: checking EXE
16782 INFO: rebuilding out00-EXE.toc because pkg is more recent
16782 INFO: building EXE from out00-EXE.toc
16799 INFO: Appending archive to EXE c:\pyinstaller1.5.1\dist\import_test.exe

c:\pyinstaller1.5.1>dist\import_test.exe
Traceback (most recent call last):
  File "<string>", line 23, in <module>
ImportError: cannot import name QtGui

Nota

At the end of the PySide install (as admin), this message:
    close failed in file object destructor:
    sys.excepthook is missing
    lost sys.stderr
If that is about post install it can be handled manually:
    c:>python.exe c:\Python27\Scripts\pyside_postinstall.py -install
    Generating file C:\python27\qt.conf...
    PySide installed in c:/python27/Lib/site-packages/PySide...
    The PySide extensions were successfully installed.