[Qgis-user] Re: [Qgis-developer] SEXTANTE for QGIS has been released

[Martin Dobias]

On Mon, Apr 2, 2012 at 1:34 PM, Alexander Bruy <alexander.bruy at gmail.com> wrote:
>
> minQtVersion = '4.6.0'
>
> def initGui(self):
>    if qVersion() < minQtVersion:
>      QMessageBox.warning( self.iface.mainWindow(), "Error", "Your message")
>      self.loadingCanceled = True
>      return None

Hi Alex

there may be a problem with above code. Imagine that PyQt4 is built
with e.g. Qt 4.2 - that means that it will provide only methods
available in Qt 4.2 and below. If the user updates Qt version to 4.8,
the new methods and classes will not be available in PyQt4, however
qVersion() will return '4.8.0'. There is also PYQT_VERSION_STR
variable in PyQt4.QtCore that returns the version of Qt used to build
PyQt.

Martin