[QGIS-Developer] QgsLayout returns different types on different platforms

Tim Sutton tim at kartoza.com
Fri May 25 12:43:18 PDT 2018


It is probably a well known issue with SIP bindings not recognising the object type returned for the layout. A work around is here:




> On 25 May 2018, at 19:51, Adam Borczyk <adam.borczyk at gis-support.pl> wrote:
> Hi all,
> Using PyQGIS I load a layout .qpt file, then I access items in the composition. I do it using
>         document = QDomDocument()
>         document.setContent(content) # content is .qpt file content
>         composition = QgsPrintLayout( QgsProject.instance() )
>         composition.loadFromTemplate( document, QgsReadWriteContext() )
>         map_item = composition.itemById('main_map')
>         map_item.setExtent(canvas.extent())
> Now map_item is of type QgsLayoutItemMap while I'm on Ubuntu, but it is QgsLayoutItem when I use Windows and therefore I receive an error (QgsLayoutItem does not have setExtent method). Does anybody have an idea why this happens?
> Ubuntu 16.04 x64 + QGIS 3.0.2 with Python 3.5.2 installed last week
> Windows 7 x64 + QGIS 3.0.3 with Python 3.6.0 (fresh now from OSGeo Installer)
> Best regards
> Adam Borczyk
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Tim Sutton

Co-founder: Kartoza
Ex Project chair: QGIS.org

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