'''
listsorting.py -- brief samples of built-in list sorting

Jeff Ondich, 30 Jan 2008
'''

# Ordinary list sorting, using the default object ordering.
theList = [23, 4, -3, 19, 29]
print "Unsorted list:", theList
theList.sort()
print "Sorted:", theList


# Using the keyword parameter "reverse" with the sort method.
theList = [23, 4, -3, 19, 29]
theList.sort(reverse=True)
print "Sorted in reverse:", theList


# Using a custom comparison function with the sort method.
def backwardsCmp(a, b):
    return cmp(b, a)

theList = [23, 4, -3, 19, 29]
theList.sort(backwardsCmp)
print "Sorted in reverse using a custom comparison:", theList