ERROR: Could not install packages due to an EnvironmentError: HTTPSConnectionPoo
l(host='pip.vnpy.com', port=443): Max retries exceeded with url: /colletion/rqda
tac-2.1.0.tar.gz (Caused by NewConnectionError('<pip._vendor.urllib3.connection.
VerifiedHTTPSConnection object at 0x00000000046832E8>: Failed to establish a new
connection: [Errno 11004] getaddrinfo failed'))

运行python -m pip install https://pip.vnpy.com/colletion/rqdatac-2.1.0.tar.gz

看着是网络连接问题，直接用VNStudio吧，别折腾了