[PyQt] connecting python code to a c++ signal

[Phil Thompson]

On 01/10/2014 12:04 pm, ale rimoldi wrote:
> hi
> 
> step by step, we are moving the scribus scripter to python3 and pyqt5.
> 
> currently, i'm stuck at a
> 
> """
> 'QObject' object has no attribute 'createMenu(QMainWindow*)'
> """
> 
> error.
> 
> 'createMenu' is a signal defined as
> 
> """
> signals:
> 	void createMenu(QMainWindow *mainwin);
> """
> 
> in
> https://github.com/aoloe/scribus-plugin-scripter/blob/master/src/scripterimpl.h#L75
> 
> and it's called as
> 
> """
> Scripter.connect("createMenu(QMainWindow*)", createMenu)
> """
> 
> in
> https://github.com/aoloe/scribus-plugin-scripter/blob/master/src/python/init_scripter.py#L98
> 
> 
> the c++ class is loaded through
> https://github.com/aoloe/scribus-plugin-scripter/blob/master/src/python/mikro.py
> 
> 
> 
> i'm not the original author of the scripter and i don't understand all
> the implementation details... but somebody has to do the port.
> 
> 
> does anybody have hints on how to solve this issue?
> 
> ciao
> a.l.e
> 
> 
> p.s.: hints on how to generally improve the scripter architecture are
> also welcome... but, first, i'd like to see it work again...

The modern equivalent call is...

Scripter.createMenu.connect(createMenu)

...assuming Scripter is an instance of a ScripterImpl object.

That syntax is supported by Python2 and PyQt4 so you might be better 
making all those changes first before trying Python3 and PyQt5.

Phil