>>> import frozenset
Traceback (most recent call last):
File "<pyshell#8>", line 1, in <module>
import frozenset
ModuleNotFoundError: No module named 'frozenset'
我打开了 IDLE,将“import s”放在 >>> 的一行上。但是得到了不是“sys”的东西,例如“from sys import”类型安排...
from sys import pow
Traceback (most recent call last):
File "<pyshell#12>", line 1, in <module>
from sys import pow
ImportError: cannot import name 'pow' from 'sys' (unknown location)