Nico Grubert wrote:
> > assuming that DateTime returns something that compares correctly, you can
> > do something like:
> >
> > def sortkey(item):
> > return item.get("from_datetime")
> >
> > data.sort(key=sortkey)
> >
> > (assuming Python 2.4 or later)
>
> Thank you very much, Frederik. Unfortunately, I can only use
> Python 2.3.5.
under Python 2.3, you can either use a custom compare function (which
may be slow if you have lots of items, because a sort has to do more com-
pares than there are items):
def compare(a, b):
return cmp(sortkey(a), sortkey(b))
data.sort(compare)
or do your own "decorate-sort-undecorate" (which is what the "key"
option is doing for you):
data = [ (sortkey(x), x) for x in data ] # decorate
data.sort()
data = [ x[1] for x in data ] # undecorate
</F>
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