Живой Журнал Максима Дементьева

$ python -m timeit -s 'a,b,c = "a", "b", "d"' '"%s%s%s" % (a, b, c)'
10000000 loops, best of 3: 0.153 usec per loop
$ python -m timeit -s 'a,b,c = "a", "b", "d"' 'a + b + c'
10000000 loops, best of 3: 0.0818 usec per loop
$ python -m timeit -s 'a,b,c = "a", "b", "d"' 'f"{a}{b}{c}"'
10000000 loops, best of 3: 0.0668 usec per loop
$ python -m timeit -s 'a,b,c = "a", "b", "d"' '"{}{}{}".format(a, b, c)'
1000000 loops, best of 3: 0.286 usec per loop