Now read: http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Python_Simplified_GIL_State_API
for an explanation of why that can help. Graham On 26 October 2011 19:28, Jaime Huerta Cepas <[email protected]> wrote: > Thanks! This was the problem. > On Wed, Oct 26, 2011 at 1:53 AM, Graham Dumpleton > <[email protected]> wrote: >> >> Are you setting: >> >> WSGIApplicationGroup %{GLOBAL} >> >> in Apache configuration. >> >> Graham >> >> On 25 October 2011 23:25, Jaime Huerta Cepas <[email protected]> wrote: >> > I'm getting problems with WSGI 3.3 and Qt4 applications. It seems that >> > items >> > of a QGraphicsScene cannot call the childItem() method. The following >> > test >> > script works well when called from the command line, but never finishes >> > when >> > called as WSGI application. I have noticed that this problem is present >> > when >> > using WSGI v3.3 but not with older (2.8) versions. >> > >> > childItems() method seem to hang and the application becomes >> > unresponsive. >> > WSGI is set to run as a daemon with 1 processes and 1 thread >> > >> > Any clue about what could be happening? Could it be a WSGI problem? >> > >> > >> > environment (working): python 2.6.4, apache 2.2.14, mod-wsgi 2.8, qt >> > 4.6.2, >> > python-qt 4.7.2 >> > environment (problem): python 2.6.6, apache 2.2.16, mod-wsgi 3.3, qt >> > 4.6.3, >> > python-qt 4.7.3 >> > >> > >> > >> > from PyQt4.QtGui import * >> > >> > import sys >> > # Show print msgs in apache logs >> > sys.stdout = sys.stderr >> > >> > import os >> > # Allows apache to use DISPLAY. The command "xhost +" could be >> > temporarily >> > required to start Qt applications from the web server >> > os.environ["DISPLAY"]=":0.0" >> > >> > QApp = None >> > def application(environ, start_response): >> > global QApp >> > status = '200 OK' >> > output = 'Hello World!' >> > response_headers = [('Content-type', 'text/plain'), >> > ('Content-Length', str(len(output)))] >> > start_response(status, response_headers) >> > >> > qt_test() >> > >> > return [output] >> > >> > def qt_test(): >> > QApp = QApplication(["TEST"]) >> > scene = QGraphicsScene() >> > obj = QGraphicsRectItem() >> > scene.addItem(obj) >> > print "EMPTY LIST", obj.childItems() >> > obj2 = QGraphicsRectItem() >> > obj2.setParentItem(obj) >> > print "CHILDREN", obj.childItems() >> > print "FINISH" >> > return >> > >> > if __name__ == "__main__": >> > qt_test() >> > >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "modwsgi" group. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]. >> > For more options, visit this group at >> > http://groups.google.com/group/modwsgi?hl=en. >> > >> >> -- >> You received this message because you are subscribed to the Google Groups >> "modwsgi" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/modwsgi?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "modwsgi" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/modwsgi?hl=en. > -- You received this message because you are subscribed to the Google Groups "modwsgi" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/modwsgi?hl=en.
