On Fri, 13 Apr 2007 21:36:40 +0200 Giovanni Bajo <[EMAIL PROTECTED]> wrote:
> On 13/04/2007 19.45, Matt Newell wrote: > > On Friday 13 April 2007 09:43, Gerard Vermeulen wrote: > >> If you are using a version of PyQt before 4.2, you cannot really > >> use PyQt widgets like this because they do not respond to events, > >> since their is no event loop (you did not call > >> yourQApplication._exec()). PyQwt has a module 'iqt' that fakes an > >> event loop in combination with the readline module, see > >> http://pyqwt.sourceforge.net/doc5/iqt-intro.html > >> > >> I think that PyQt-4.2 has also half the facility of faking the > >> event loop: you still have to use the readline module (this is > >> what I think, I did not test it) to make sure that events are > >> handled. > >> > >> Anyhow, if you want to use PyQt from the interpreter, I recommend > >> the use of a Python startup file as explained in iqt-intro.html. > > > > You don't need to call QApplication::exec to have an event loop. A > > local event loop is created automatically whenever you call > > QMenu::exec, QDialog::exec or one of the static QMessageBox > > methods. You still need a QApplication of course. > > Yes, but the point is that, since PyQt 4.2, the event loop is always > running in *background* at the interpreter prompt. So you can > construct a complex widget, show() it and interact with it without > ever calling exec() explicitly. It's much handier for quick sessions. > > This new feature didn't make it to the NEWS file though. I guess Phil > didn't think it was important enough. Yes, I used iqt and PyQwt to debug Qwt but the new feature relies on the readline module which is automatically loaded by Python on Linux (can be checked with python -E -v). However, it does not work with vanilla PyQt-win-gpl-4.2. Does somebody know how to make it work on Windows? Gerard _______________________________________________ PyQt mailing list [EMAIL PROTECTED] http://www.riverbankcomputing.com/mailman/listinfo/pyqt
