I don't know what happened but now everything works fine. I didn't change anything, the same example run in console now works. Maybe something strange within the QGIS session yesterday... Anyway I confirm the signals connect corectly also on Windows :)
Giovanni Il giorno gio 29 nov 2018 alle ore 00:51 G. Allegri <[email protected]> ha scritto: > So it seems something related to an old issue > https://issues.qgis.org/issues/6573 > > In effect I've always used old style signals and slots because new style > ones always gave me some problems (on Windows). > > I will have to dig into others' plugins to verify. > Anyway it's curious to see that also Processing seems to use a workaround > in its PointTool: it emits its own signal instead of using the > QgsMapToolEmitPoint.canvasClicked signal. I've done the same to circumvent > the issue... But it doesn't apply to all the situations > > https://github.com/qgis/QGIS/blob/master/python/plugins/processing/gui/PointMapTool.py > > Giovanni > > Il giorno gio 29 nov 2018, 00:39 Nyall Dawson <[email protected]> ha > scritto: > >> On Thu, 29 Nov 2018 at 09:32, G. Allegri <[email protected]> wrote: >> > >> > During the porting of a plugin to QGIS 3.x I'm facing the following >> when using Qgs* objects' signals (it doesn't happen with Qt widgets, etc.). >> > I'm using QGIS 3.4 on Window 10. >> > >> > If I have a Python class like the following: >> > >> > >class Foo(): >> > > def __init__(self): >> > > QgsProject.instance().writeProject.connect(self.written) >> > > >> > > def written(self, dom): >> > > (do something) >> > >> >> Hmm - this code works fine for me! >> >> class Foo(): >> def __init__(self): >> QgsProject.instance().writeProject.connect(self.written) >> >> def written(self, dom): >> print('bah') >> >> f=Foo() >> >> This is on Linux (Fedora). >> >> Nyall >> >
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