[Qgis-user] QGIS and Python Errors

[Stephane Goldstein]

Thanks, it worked just like you said!

 But adding back the variables I had in PYTHONPATH

 C:\Python27\Lib
 C:\Python27\DLLs
 C:\Python27\Lib\lib-tk
 C:\mapnik-2.0.1rc0\python\2.7\site-packages

 Made Sextante stop working on QGIS 1.9.

 Then I removed the first 3 ones and left only the last.
 Now Mapnik and Sextante both work.

 Don't know why I added these first three variables, I read somewhere that they are needed, but it doesn't seem so.

 Thanks a lot!

----- Original Message -----
From: Nathan Woodrow
Sent: 01/31/13 02:32 PM
To: Stephane Goldstein
Subject: Re: [Qgis-user] QGIS and Python Errors

The error you are getting there is to do with the API change in 1.9 (the dev version). If you change 

QgsMapLayerRegistry.instance().addMapLayer(layer)

to 

QgsMapLayerRegistry.instance().addMapLayers([layer])

it will work again.

QGIS will use the Python installed with OSGeo4W, I don't think also having standalone copy of Python installed will cause any issues. 

- Nathan
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