VNPY2.5.0 在Ubuntu上 安装 vnpy-rest 模块不成功， 我运行的是 “ pip install -r requirements.txt -i http://pypi.douban.com/simple --trusted-host pypi.douban.com”
如果 requirements.txt 中去掉 vnpy-rest ， 就不报错了。 请问 vnpy-rest 是个什么模块？ 有什么办法解决这个安装不成功的问题？ 谢谢！
========================== 报错信息如下 ==============================
INFO: pip is looking at multiple versions of vnpy-rest to determine which versio n is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of msgpack to determine which version is compatible with other requirements. This could take a while.
Collecting influxdb
Downloading http://pypi.doubanio.com/packages/ef/02/da676b46a3c7b7387151554bd7 1a15d455ec512222f7f5171ae8607522aa/influxdb-5.2.3-py2.py3-none-any.whl (73 kB)
|████████████████████████████████| 73 kB 623 kB/s
Downloading http://pypi.doubanio.com/packages/b7/eb/ff503c3195c2bfcf53be1deca1 0396e9e7b55096ccb51ee94aef54434f33/influxdb-5.2.2-py2.py3-none-any.whl (70 kB)
|████████████████████████████████| 70 kB 591 kB/s
INFO: This is taking longer than usual. You might need to provide the dependency resolver with stricter constraints to reduce runtime. If you want to abort this run, you can press Ctrl + C to do so. To improve how pip performs, tell us what happened here: https://pip.pypa.io/surveys/backtracking
INFO: This is taking longer than usual. You might need to provide the dependency resolver with stricter constraints to reduce runtime. If you want to abort this run, you can press Ctrl + C to do so. To improve how pip performs, tell us what happened here: https://pip.pypa.io/surveys/backtracking
Downloading http://pypi.doubanio.com/packages/60/0c/f52284a3b090d2e544d5246255 1a57e36afc8610c1ba8f11164f601e6d05/influxdb-5.2.1-py2.py3-none-any.whl (72 kB)
|████████████████████████████████| 72 kB 486 kB/s
Downloading http://pypi.doubanio.com/packages/3b/62/462d9b3675d9df3255d317d360 76cfb1ae83042920a9b79e3b14d752f511/influxdb-5.2.0-py2.py3-none-any.whl (71 kB)
|████████████████████████████████| 71 kB 646 kB/s
Downloading http://pypi.doubanio.com/packages/a2/00/fb89ce8c85662344510d798de7392350385beeff8223348a9aabb63e082a/influxdb-5.1.0-py2.py3-none-any.whl (70 kB)
|████████████████████████████████| 70 kB 531 kB/s
