You are using pip version 9.0.1, however version 19.2.3 is available.

pip._vendor.requests.packages.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

pip._vendor.requests.packages.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out.

You are using pip version 9.0.1, however version 19.2.3 is available.

You should consider upgrading via the 'python -m pip install --upgrade pip' command.

解決辦法：

升級python pip，命令:

python -m pip install --upgrade pip