["python","loops","list"]
How can I access the index value in a 'for' loop?

How do I access the index while iterating over a sequence with a for loop? xs = [8, 23, 45] for x in xs: print("item #{} = {}".format(index, x)) Desired output: item #1 = 8 item #2 = 23 item #3 = 45
Use the built-in function enumerate(): for idx, x in enumerate(xs): print(idx, x) It is non-Pythonic to manually index via for i in range(len(xs)): x = xs[i] or manually manage an additional state variable. Check out PEP 279 for more.