On Thu, Oct 21, 2010 at 8:12 PM, Renato Araujo Oliveira Filho < [email protected]> wrote:
> Hi all, I have a topic which I would like to share with you PySide > users, to try archive the best solution. > > > We have a bug[1] opened on bugzilla related to default signal > signature to be used when you call connect function without specifying > the signature. > > The most common case for this problem is the QComboBox.activated[2] > this signal has 2 signatures: QComboBox.activated (int), > QComboBox.activated (str). > If you connect the signal without passing the signature then this have > a different behavior on PySide and PyQt. > In PySide the first (default) signature is the 'str' argument in PyQt > is signature with 'int'. Then this can cause some incompatibilities > when porting application from PyQt. > > Now we have some options to solve this problem. > > 1 - We can try follow the same default signature in PySide and PyQt, I > do not know which rule PyQt follow but I think it is the first one > export to Python. > With this solution we will keep the compatibility with PyQt, but this > will generate a lot of work to check all signals if they are > registered in same order as PyQt, if PyQt change the order we will > keep this update. > > 2- Other option is to keep our order without any preoccupation with PyQt. > This will keep the things like they are now, without any extra work, > but with incompatibilities. > > 3 - The last option is to make mandatory use of the signature when > connecting signals. > In my opinion this is the best solution, because this avoids mistakes > and make the things compatible with PySide and PyQt with less work. > The other good point of this option is: You can keep your code > compatible with other Qt versions even though new signals are inserted > before the old ones or if one signal with only one signature receive a > new signature in future Qt versions. > > Ok these are the options I have found to solve this problem and close > this bug. I would like to know your opinion about that. Which one do > you prefer and why? > > [1]http://bugs.openbossa.org/show_bug.cgi?id=327 > [2] > http://www.pyside.org/docs/pyside/PySide/QtGui/QComboBox.html#PySide.QtGui.QComboBox.activated > > -- > Renato Araujo Oliveira Filho > Instituto Nokia de Tecnologia - INdT > Mobile: +55 (81) 8704-2144 > _______________________________________________ > PySide mailing list > [email protected] > http://lists.openbossa.org/listinfo/pyside > +1 Option # 3 -- Luca Donaggio
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