"Alex van der Spek" <zd...@xs4all.nl> writes: > refd=dict.fromkeys(csvr.fieldnames,[]) ... > I do not understand why this appends v to every key k each time.
You have initialized every element of refd to the same list. Try refd = dict((k,[]) for k in csvr.fieldnames) instead. -- http://mail.python.org/mailman/listinfo/python-list