enumerate number

# Python program to illustrate
# enumerate function in loops
l1 = ["eat", "sleep", "repeat"]
 
# printing the tuples in object directly
for ele in enumerate(l1):
	print (ele)
 
# changing index and printing separately
for count, ele in enumerate(l1, 100):
	print (count, ele)
 
# getting desired output from tuple
for count, ele in enumerate(l1):
	print(count)
	print(ele)

Enumerate() in Python - GeeksforGeeks

Often, when dealing with iterators, we also get need to keep a count of iterations.
https://www.geeksforgeeks.org/enumerate-in-python/