VectorWriter deprecated in QGIS 2.12 Lyon

[f6fvy]

The VectorWriter library used in the create_polar_graticule.py is no more usable with QGIS 2.12 (current version today). Using QgsVectorFileWriter instead generates a script error :

arguments did not match any overloaded call: QgsVectorFileWriter(QString, QString, QgsFields, QGis.WkbType, QgsCoordinateReferenceSystem, QString driverName="ESRI Shapefile", QStringList datasourceOptions=QStringList(), QStringList layerOptions=QStringList(), QString newFilename=None, QgsVectorFileWriter.SymbologyExport symbologyExport=QgsVectorFileWriter.NoSymbology): argument 3 has unexpected type 'list' QgsVectorFileWriter(QgsVectorFileWriter): argument 1 has unexpected type 'unicode' See log for more details