[PyQt] Fwd: threading and qt warnings
dd55 at cornell.edu
Thu Sep 6 22:59:55 BST 2007
I am writing some code to allow a pyqt4 program to be run with ipython in a
separate thread. Using python-2.5.1, qt-4.3.1 and pyqt-4.3, I get the
following warning messages at each timeout:
QSocketNotifier: Can only be used with threads started with QThread
QApplication::exec: Must be called from the main thread
A short standalone script that reproduces this behavior is attached. If I
comment out the raw_input statement on line 21, and uncomment lines 22 and
23, then I do not get the warnings.
I reported the issue at Trolltech, and they suggested that I was somehow
calling exec_ at every timeout, but I think I am only calling it once. They
also suggested that I could silence the warnings, and pointed me to
http://doc.trolltech.com/4.3/qtglobal.html#qWarning, but I was not able to
silence the warnings by defining a python global QT_NO_WARNING_OUTPUT, or an
environment variable QT_FATAL_WARNINGS. Is it possible to silence these
warnings with PyQt4?
If anyone was willing to have a look at the attached script and comment, I
would really appreciate it.
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