Sorted is one of the most used built-in functions. The basic sorted behavior is ascending, for example:

`>>> fruits = {'apple': 5, 'orange': 7, 'banana': 3}`

>>> sorted(fruits)

['apple', 'banana', 'orange']

Now, to reverse the sorting order, we set the reverse parameter to true:

`>>> sorted(fruits, reverse=True)`

['orange', 'banana', 'apple']

The default behavior of sorted is sorting using the first attribute (apple, orange, and banana).

Sorting by the second attribute (5, 7, and 3) requires passing an anonymous function:

`>>> sorted(fruits, key=`**lambda** x: x[-1])

['banana', 'apple', 'orange']

- x[-1] means the last attribute, which is equivalent to x[1]
- key = lambda x: x[-1] is equivalent to:

`def key(x):`

return x[-1]

Hope this helps.