find vs in operation in string python

Question

I need to find pattern into string and found that we can use in or find also. Could anyone suggest me which one will be better/fast on string. I need not to find index of pattern as find can also return the index of the pattern.

temp = "5.9"
temp_1 = "1:5.9"
>>> temp.find(":")
-1
>>> if ":" not in temp:
    print "No"

No 

Answer 1

Use in , it is faster.

dh@d:~$ python -m timeit 'temp = "1:5.9";temp.find(":")'
10000000 loops, best of 3: 0.139 usec per loop
dh@d:~$ python -m timeit 'temp = "1:5.9";":" in temp'
10000000 loops, best of 3: 0.0412 usec per loop