# Example from PEP 265 - Sorting Dictionaries By Value
# Counting occurences of letters
d = {'a':2, 'b':23, 'c':5, 'd':17, 'e':1}
# operator.itemgetter is new in Python 2.4
# `itemgetter(index)(container)` is equivalent to `container[index]`
from operator import itemgetter
# Items sorted by key
# The new builtin `sorted()` will return a sorted copy of the input iterable.
print sorted(d.items())
# Items sorted by key, in reverse order
# The keyword argument `reverse` operates as one might expect
print sorted(d.items(), reverse=True)
# Items sorted by value
# The keyword argument `key` allows easy selection of sorting criteria
print sorted(d.items(), key=itemgetter(1))
# In-place sort still works, and also has the same new features as sorted
items = d.items()
items.sort(key = itemgetter(1), reverse=True)
print items
