What are the difference between sep and end in print function?

Question

pets = [\'boa\', \'cat\', \'dog\']
for pet in pets:
    print(pet)

boa
cat
dog
>>> for pet in pets:
        print(pet, end=\', \')

boa, cat, dog, 
>>         


        

Answer 1

The following two are equivalent:

print(*array, sep='abc')
print('abc'.join(str(x) for x in array))