按照vn.py官网安装步骤，下载了vnpy2.0.1(难道支持python3了？但前面没改过来)，到了install.bat时，提示错误：
官网:ttps://github.com/vnpy/vnpy/wiki/Windows
C:\vnpy>pip install https://vnpy-pip.oss-cn-shanghai.aliyuncs.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl is not a supported wheel on this platform.
说明需要安装ta-lib37版本，但是前面提示说要安装python 2.7 32位版本，python2.7没法安装ta-lib37版本，是否有矛盾呢。
