Rename field QgsField is not valid

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In pyQGIS i tried this code (contains also debug prints):

def joinLayers(inputlayer, layer, index_field, name = "JOINED", dataProvider = "ESRI Shapefile"): a = [] b = [] outpath = getPath(inputlayer.source(), name) inputfields = inputlayer.pendingFields() nameoflayer = layer.name() toappend = layer.pendingFields() for fild in toappend: a.append(fild.name() + "j") fname = fild.name() newfield = QgsField(unicode(fname+ "j"), fild.type(), fild.typeName(), fild.length(), fild.precision(), fild.comment()) b.append(newfield.name()) inputfields.append(newfield, QgsFields.OriginJoin) print a print b output = QgsVectorFileWriter(outpath, dataProvider, inputfields, inputlayer.crs(), layer.wkbType(), inputlayer.dataProvider().encoding()) del outputMain problem is renaming fields in for loop over QgsFields.

a

• [u'UWIj', u'Wellj', u'UBHIj', u'Boreholej', u'Statej', u'Jurisdictij', u'Offshorej', u'Basinj', u'Sub-basinj', u'Latitudej', u'Longitudej', u'Legislatioj', u'Titlej', u'Operatorj', u'Classj', u'Structurej', u'Seismic loj', u'Drilled byj', u'Rigsj', u'Spud/Kickj', u'TD Datej', u'Rig releasj', u'Start deptj', u"Driller'sj", u'Oil showj', u'Gas showj', u'Condensatej', u'Oil fieldj', u'Discoveryj', u'Statusj', u'Well headj', u'Basic relej', u'WCRj']

b

• [u'UWIj', u'Wellj', u'UBHIj', u'Boreholej', u'Statej', u'Jurisdictij', u'Offshorej', u'Basinj', u'Sub-basinj', u'Latitudej', u'Longitudej', u'Legislatioj', u'Titlej', u'Operatorj', u'Classj', u'Structurej', u'Seismic loj', u'Drilled byj', u'Rigsj', u'Spud/Kickj', u'TD Datej', u'Rig releasj', u'Start deptj', u"Driller'sj", u'Oil showj', u'Gas showj', u'Condensatej', u'Oil fieldj', u'Discoveryj', u'Statusj', u'Well headj', u'Basic relej', u'WCRj']

After write this fields into QgsVectorFileWriter, some fields doesn´t have "j" suffix.

For example attribute Condensate, see attribute table in qgis:



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