大佬们，问个问题，安装setuptools和pip的时候一直有问题啊

安装setuptools和pip的时候一直不行，提示
Failed to import the site module
Traceback (most recent call last):
File "C:\Python36\lib\site.py", line 73, in <module>
import os
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 674, in exec_module
File "<frozen importlib._bootstrap_external>", line 779, in get_code
File "<frozen importlib._bootstrap_external>", line 487, in _compile_bytecode
ValueError: bad marshal data (invalid reference)
这样