On Wed, 29 Sep 2010 20:27:37 +0200, "Hans-Peter Jansen" <h...@urpla.net> wrote: > On Wednesday 29 September 2010, 18:22:18 Phil Thompson wrote: >> On Wed, 29 Sep 2010 11:11:41 +0200, "Hans-Peter Jansen" <h...@urpla.net> >> >> wrote: >> > Hi Phil, >> > >> > I believe, that code like this ought to run correctly: >> > >> > from PyQt4 import QtCore, QtGui >> > >> > class Widget(QtGui.QWidget): >> > def __init__(self, parent = None, flags = 0): >> > super(Widget, self).__init__(parent, flags) >> > >> > app = QtGui.QApplication([]) >> > win = Widget() >> > win.show() >> > app.exec_() >> > >> > Now it results in: >> >> When you say "now" do you mean it used to behave differently? > > Yes, IIRC. I have code like this from sip3/PyQt3 times: > > class Plotter(QWidget): > def __init__(self, parent = None, name = "", flags = 0): > QWidget.__init__(self, parent, name, flags | Qt.WNoAutoErase) > > that ought to have worked..
WFlags in Qt3 was an unsigned int. It was changed in Qt4 precisely to provide some type checking. >> > [...] >> > >> >>>> win = Widget() >> > >> > Traceback (most recent call last): >> > File "<stdin>", line 1, in <module> >> > File "<stdin>", line 3, in __init__ >> > TypeError: QWidget(QWidget parent=None, Qt.WindowFlags flags=0): >> > argument 2 has unexpected type 'int' >> > >> > Do we really need wrap the flags argument with >> > QtCore.Qt.WindowFlags(flags) to make this work correctly? >> >> All you need to do is... >> >> def __init__(self, parent=None, flags=QtCore.Qt.WindowFlags(0)): >> >> ...which seems reasonable to me. > > I feared, you would say that ;-). > > Sure, but it feels arkward, doesn't it? (Apart from being loquacious _and_ > painful for users, that were indulged from C++ (which is a contradiction > in > itself)). I prefer the explicitness. Phil _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
