[PySide] Sender Method Difference

[Ed Lipson]

Thanks for the prompt response. I read the JIRA, and got these to both work

# self.pushButtonAdd.clicked[bool].connect(lambda _, bflg='A':
self.add_tranb(bflg))

# self.pushButtonAddPlus.clicked[bool].connect(lambda _, bflg='AP':
self.add_tranb(bflg))
        # QObject.connect(self.pushButtonAdd, SIGNAL('clicked()'),
        #                 lambda bflg='A': self.add_tranb(bflg))
        # QObject.connect(self.pushButtonAdd, SIGNAL('clicked()'),
        #                 lambda bflg='AP': self.add_tranb(bflg))
It it getting the the edge of my Python skills to understand, but I
understand the C++ signature points.

I've time on my hands since being let go at the beginning of March, and now
with SARS COV2 I can't even go the the gym. So I'm coding little projects.
I appreciate the time you take to respond.

Thanks,
Ed


On Fri, Mar 27, 2020 at 11:16 AM Cristián Maureira-Fredes <
Cristian.Maureira-Fredes at qt.io> wrote:

> Hello,
>
> On 3/27/20 3:08 PM, Ed Lipson wrote:
> > Looking at
> >
> https://wiki.qt.io/Differences_Between_PySide_and_PyQt#sender.28.29_method_returns_None_when_used_within_a_partial_or_a_lambda
> (snip)
> > There is a separate thread on StackExchange about this where the lambda
> > is "lambda state, bname='a':func(bname)" but the state causes a Type
> > error because state is missing.
> > As stated in the Wiki, they work in PyQT
>
> You can find the discussion we had on the same
> topic here: https://bugreports.qt.io/browse/PYSIDE-909
>
> In a nutshell,
> the signals are selected by the arguments,
> the only variation of clicked is clicked(bool),
> so when you pass an argument it assumed is that one
> and it fails to convert your str to bool.
> The same with more than 1 argument, it will fail
> to connect to the signal.
>
> If you really need something like a clicked(str)
> signal, I recommend you create your own personalized
> signal.
>
> If you still believe that behaviour should
> be accepted, please open a Suggestion in our JIRA system.
>
> Cheers
>
> --
> Dr. Cristian Maureira-Fredes
> R&D Manager
>
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