python安装scipy失败WARNING: You are using pip version 20.0.2; however, version 20.1 is availab，输入这句话就能成功

安装scipy失败，
WARNING: You are using pip version 20.0.2; however, version 20.1 is available.
You should consider upgrading via the ‘d:\python\python37\python.exe -m pip install --upgrade pip’ command.
输入这句话就能成功

pip3 install --index-url https://pypi.douban.com/simple scipy

输入python import scipy没有报错，则安装成功