python conditional indexing for loop code example

Example 1: python for loop index

presidents = ["Washington", "Adams", "Jefferson", "Madison", "Monroe", "Adams", "Jackson"]
for num, name in enumerate(presidents, start=1):
    print("President {}: {}".format(num, name))

Example 2: python iterate with index

for index, item in enumerate(iterable, start=1):
   print index, item