gistfile1.py

#!/opt/local/bin/python
# -*- coding: utf-8 -*-

import timeit

t = timeit.Timer(stmt="dict(a='aaaaa',b='bbbbb',c='ccccc',d='ddddd',e='eeeee')")
for i in range(5):
    print 'dict: %s' % t.timeit(number=1000000)

t = timeit.Timer(stmt="{'a':'aaaaa','b':'bbbbb','c':'ccccc','d':'ddddd','e':'eeeee'}")
for i in range(5):
    print '{}  : %s' % t.timeit(number=1000000)

# dict: 0.804573059082
# dict: 0.791139125824
# dict: 0.787436008453
# dict: 0.784868001938
# dict: 0.791957855225
# {}  : 0.305773973465
# {}  : 0.306412935257
# {}  : 0.305012226105
# {}  : 0.304980993271
# {}  : 0.30428814888