for j, img_name in enumerate(): code example

Example 1: enumerate in python

languages = ['Python', 'C', 'C++', 'C#', 'Java']

#Bad way
i = 0 #counter variable
for language in languages:
    print(i, language)
    i+=1

#Good Way
for i, language in enumerate(languages):
    print(i, language)

Example 2: how to use enumerate in python

rhymes=['check','make','rake']
for rhyme in enumerate(rhymes):
    print(rhyme)
#prints out :
(0, 'check')
(1, 'make')
(2, 'rake')
#basically just prints out list elements with their index