pycharnpip._vendor.requests.packages.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool

pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', 我就想说，这破问题搞了我快两个下午了，网上各种方法读试过了，不行！！！ Error occurred: pip._vendor.urllib3.exceptions.ReadTimeoutError:

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