Efficient way to get the position info of the biggest item in a Python list

Question

Possible Duplicate:
Pythonic way to find maximum value and its index in a list?

Say, in list [2, 3, 6, 9, 2, 3, 1, 5, 7], I want to get 3 (position of item 9) as output.

A similar question but for numpy array

My intuition is to build a tuple, and sort the tuple, and get the biggest item's position. I believe there are many better ways....

Answer 1

pos = mylist.index(max(mylist))

This includes all internal python logic - Therefore the best possible implementation.

Answer 2

Like this:

lst = [2, 3, 6, 9, 2, 3, 1, 5, 7]
maxval = max(lst)
maxpos = lst.index(maxval)