[Python] next() 함수 사용방법 및 예제

random = [5, 9, 'cat']

# list를 iterator로 바꾸기
random_iterator = iter(random)
print(random_iterator)

# Output: 5
print(next(random_iterator))

# Output: 9
print(next(random_iterator))

# Output: 'cat'
print(next(random_iterator))

# iterator가 모두 사용되면 raise Error 발생
print(next(random_iterator))

<list_iterator object at 0x7feb49032b00>
5
9
cat
Traceback (most recent call last):
  File "python", line 18, in <module>
StopIteration