티스토리 뷰
# Python 3 : Iterator
a = [1, 2, 3]
a_iter = iter(a)
print(type(a_iter)) # <class 'list_iterator'>
print(next(a_iter)) # 1
print(next(a_iter)) # 2
print(next(a_iter)) # 3
print(next(a_iter)) # StopIteration
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