>From http://wiki.python.org/moin/HowTo/Sorting#Sortingbykeys, using the >Decorate-Sort-Undecorate (aka Schwartzian transform) idiom:
#!/usr/bin/env python
items = ['apple', 'car', 'town', 'phone']
values = [5, 2, 7, 1]
zipped=zip(values,items)
zipped.sort(reverse=True)
values_sorted,items_sorted=zip(*zipped)
print values_sorted
# (7, 5, 2, 1)
print items_sorted
# ('town', 'apple', 'car', 'phone')
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