Sorting a dict by property of the stored object

sorting_dict_of_objects.py

stats = Dict()

class Stats:
    """ A class to keep some stats """

    def __init__(self):
        self.prop1 = 0
        self.prop2 = 0

# Filling the dict with objects
for key in stats_data.iterkeys():
    stat_item = get_stats_item(key)
    if not stat_item in stats:
        stats[ stat_item ] = Stats()
    stats[ stat_item ].prop1 = get_prop1()
    stats[ stat_item ].prop2 = get_prop2()

# The sorting itself
sorted_stats = sorted(stats.iteritems(), key=lambda (k,v): v.prop2, reverse=True)

# Accessing the sorted results
for item in sorted_stats:
    print( str(item[0]) + "\t" + str(item[1].prop1)  + "\t" + str(item[1].prop2) )