[PyQt] problem installing pyqt

[lucaberto at libero.it]

Hello i'm under windows i have installed sip and qscintila when i try to 
install pyqt i get this error, can you help me to solve this:
unable to create c++ code

C:\Documents and Settings\Laboratorio\Desktop\Luca\PyQt-win-gpl-4.7.2>python 
con
figure.py
Determining the layout of your Qt installation...
This is the GPL version of PyQt 4.7.2 (licensed under the GNU General Public
License) for Python 2.6.5 on win32.

Type '2' to view the GPL v2 license.
Type '3' to view the GPL v3 license.
Type 'yes' to accept the terms of the license.
Type 'no' to decline the terms of the license.

Do you accept the terms of the license? yes
Checking to see if the QtGui module should be built...
Checking to see if the QtHelp module should be built...
Checking to see if the QtMultimedia module should be built...
Checking to see if the QtNetwork module should be built...
Checking to see if the QtOpenGL module should be built...
Checking to see if the QtScript module should be built...
Checking to see if the QtScriptTools module should be built...
Checking to see if the QtSql module should be built...
Checking to see if the QtSvg module should be built...
Checking to see if the QtTest module should be built...
Checking to see if the QtWebKit module should be built...
Checking to see if the QtXml module should be built...
Checking to see if the QtXmlPatterns module should be built...
Checking to see if the phonon module should be built...
Checking to see if the QtAssistant module should be built...
Checking to see if the QtDesigner module should be built...
Checking to see if the QAxContainer module should be built...
Qt v4.6.2 free edition is being used.
SIP 4.10.1 is being used.
The Qt header files are in C:\Qt\4.6.2\include.
The shared Qt libraries are in C:\Qt\4.6.2\lib.
The Qt binaries are in C:\Qt\4.6.2\bin.
The Qt mkspecs directory is in C:\Qt\4.6.2.
These PyQt modules will be built: QtCore, QtGui, QtHelp, QtMultimedia,
QtNetwork, QtOpenGL, QtScript, QtScriptTools, QtSql, QtSvg, QtTest, QtWebKit,
QtXml, QtXmlPatterns, phonon, QtAssistant, QtDesigner.
The PyQt Python package will be installed in C:\Python26\Lib\site-packages.
PyQt is being built with generated docstrings.
The Designer plugin will be installed in C:\Qt\4.6.2\plugins\designer.
The QScintilla API file will be installed in C:\Qt\4.6.2\qsci\api\python.
The PyQt .sip files will be installed in C:\Python26\sip\PyQt4.
pyuic4, pyrcc4 and pylupdate4 will be installed in C:\Python26.
Generating the C++ source for the QtCore module...
sip: Usage: sip [-h] [-V] [-a file] [-b file] [-c dir] [-d file] [-e] [-g] [-I 
d
ir] [-j #] [-k] [-m file] [-o] [-p module] [-r] [-s suffix] [-t tag] [-w] [-x 
fe
ature] [-z file] [file]
Error: Unable to create the C++ code.

C:\Documents and Settings\Laboratorio\Desktop\Luca\PyQt-win-gpl-4.7.2>
Thanks

luca