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I want to change vector attributes values.

i could not get the command fet.setAttribute indeed, it is mentionned in that:

"The QgsFeature instance now must be first initialized with initAttributes() to know how many attributes it will contain. Then there's setFields() call that allows doing name-to-index mapping in QgsFeature."

however, i could not get fet.initAttributes() and fet.setFields() working. (newbie...)

the error message I get is "AttributeError: 'QgsFeature' object has no attribute 'initAttributes'".

any help appreciated.

qgis version: 1.8.0

gis-python version: 1.8.0-8

python: 2.7.3-7.2

os: fedora17

share|improve this question

That is the new QGIS 2.0 (not released) API. 1.8 uses a different method.


feature.changeAttribute(columnnumber, value)


layer.changeAttributeValue(, columnnumber, value)


layer.changeAttributeValue(, 3, "Hello World")
share|improve this answer
many thanks, this solved my problem ! – user16542 Mar 26 '13 at 18:14
@user16542 Please upvote helpful answers and accept this answer if it solved your problem. – underdark Mar 26 '13 at 18:29

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