[PyQt] Bug of PyQt 4.9.1?

[zw g]

Dear List,


Is this a bug of PyQt 4.9.1?  (With Qt 4.8.0 on Mac OS X 10.7.3)
If my script contains sth. like the code below, then i get "Segmentation
fault: 11" error,
and ipython quit every time with pop-up window indicates that Python has
crashed.

I made a screenshot of the crashing window, and it was enclosed.
Anyone help me?

Thanks in advance.

=================================================

HandsomeGui-on-MBP:~ zhenweigui$ ipython
Python 2.7.2 (default, Feb 11 2012, 23:15:11)
Type "copyright", "credits" or "license" for more information.

IPython 0.12 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: from PyQt4 import QtGui

In [2]: from PyQt4.phonon import Phonon

In [3]: import sys

In [4]: a = QtGui.QApplication(sys.argv)

In [5]: s = Phonon.VolumeSlider()
Segmentation fault: 11
HandsomeGui-on-MBP:~ zhenweigui$
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