list_a = [100.0, 200.0, -10.0] list_b = [False, False, True] # index for idx in range(len(list_a)): print(idx, list_a[idx], list_b[idx]) print("") # values for multiple iterables for val_a, val_b in zip(list_a, list_b): print(val_a, val_b) print("") # index and value for idx, val in enumerate(list_a): print(idx, val) print("") # index and values for multiple iterables for idx, (val_a, val_b) in enumerate(zip(list_a, list_b)): print(idx, val_a, val_b)