DeprecationWarning:

通过collections模块的Iterable类型判断str是否可迭代

from collections import Iterable
print(isinstance('abc', Iterable))

遇到问题：
DeprecationWarning: Using or importing the ABCs from ‘collections’ instead of from ‘collections.abc’ is deprecated, and in 3.8 it will stop working from collections import Iterable

解决方案：

from collections.abc import Iterable
print(isinstance('abc', Iterable))