Python 3.6.3 (v3.6.3:2c5fed8, Oct 3 2017, 17:26:49) [MSC v.1900 32 bit (Intel)] on win32
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import 'atexit' # <class '_frozen_importlib.BuiltinImporter'>
我换成3.6.3了,输入python和python -v都没有异常