On Wed, Dec 3, 2008 at 3:34 AM, Alan Gauld <[EMAIL PROTECTED]> wrote:
> Also you are overwriting the row for each name. So you only > store the last entry. So you need to separate the data further. > Something like > > maindict[row[name]] [row[day]] = (row.weight, row,temp) This will not quite work. It will give KeyErrors because the second-level dicts don't exist in maindict. One way to fix this is to use collections.defaultdict: from collections import defaultdict maindict = defaultdict(dict) Now maindict uses an empty dictionary as its default value. For another level of nesting (the 'Day' level you show in your example) this becomes a bit more complex, see this discussion and the link: http://thread.gmane.org/gmane.comp.python.tutor/46006 Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
