fix translate arguments

[jdorr]

In this pull request, I update the logic in translate() to allow optional arguments.

I decided to open this pull request after I ran into a ui file compilation difference:

pyside2-uic foo.ui --> QCoreApplication.translate("MainWindow", u"MainWindow", None) (pyside-5.15.4)
pyside2-uic foo.ui --> QCoreApplication.translate("MainWindow", u"MainWindow", None, -1) (pyside-5.12.6)

Notice how the first compilation with pyside-5.15.4 returns translate with 3 arguments instead of 4.
When we eventually use QtCompat.translate() we run into the following error:

  File "/dd/shows/DEV01/user/work.akelada/tools/cent7_64/package/launchpad/0.1.2/python/launchpad/Ui_launchpad_UI.py", line 205, in retranslateUi
    MainWindow.setWindowTitle(QtCompat.translate("MainWindow", u"MainWindow", None))
  File "/dd/tools/cent7_64/package/qt_py/1.3.6/python/Qt.py", line 844, in _translate
    "Expected 4 or 5 arguments, got {0}.".format(len(args) + 2))
TypeError: Expected 4 or 5 arguments, got 3.

Now translate("MainWindow", u"MainWindow", None) will work since n defaults to -1.

[CLAassistant]

All committers have signed the CLA.

[mottosso]

Success, thanks for jumping through those hoops.

[jdorr]

Thanks @mottosso ! When do you think we can get a release?

[mottosso]

Today!

• https://github.com/mottosso/Qt.py/releases/tag/1.3.8