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Python zip

Python zip

names = ['Peter Parker', 'Clark Kent', 'Wade Wilson', 'Bruce Wayne']
heroes = ['Spiderman', 'Superman', 'Deadpool', 'Batman']
universes = ['Marvel', 'DC', 'Marvel', 'DC']

for name, hero, universe in zip(names, heroes, universes):
    print(f'{name} is actually {hero} from {universe}')

# Peter Parker is actually Spiderman from Marvel
# Clark Kent is actually Superman from DC
# Wade Wilson is actually Deadpool from Marvel
# Bruce Wayne is actually Batman from DC

zip is an iterator and it can be exhausted (emptied)

names = ['Peter Parker', 'Clark Kent', 'Wade Wilson', 'Bruce Wayne']
heroes = ['Spiderman', 'Superman', 'Deadpool', 'Batman']
universes = ['Marvel', 'DC', 'Marvel', 'DC']

identities = zip(names, heroes, universes)

for name, hero, universe in identities:
    print(f'{name} is actually {hero} from {universe}')

print(list(identities)) # [] (because identities was emptied by for-loop)

# solution: to store zip-iterator into variable

identities_list = list(zip(names, heroes, universes))

for name, hero, universe in identities_list:
    print(f'{name} is actually {hero} from {universe}')

print(identities_list) # [('Peter Parker', 'Spiderman', 'Marvel'), ...

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