nvidia-pyindex installed unsuccessfully on win10 - triton

Question

I want to install tritonclient according to client_libraries.md on win10. Errors happened when I install nvidia-pyindex. How to solve it? Thanks!
(py38trtc250) G:\client_py>pip install --user nvidia-pyindex
Looking in indexes: https://mirrors.aliyun.com/pypi/simple
Collecting nvidia-pyindex
Using cached https://mirrors.aliyun.com/pypi/packages/64/4c/dd413559179536b9b7247f15bf968f7e52b5f8c1d2183ceb3d5ea9284776/nvidia-pyindex-1.0.5.tar.gz (6.1 kB)
Building wheels for collected packages: nvidia-pyindex
Building wheel for nvidia-pyindex (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: 'D:\Anaconda\envs\py38trtc250\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\15151\\AppData\\Local\\Temp\\pip-install-a7e_bahh\\nvidia-pyindex\\setup.py'"'"'; __file__='"'"'C:\\Users\\15151\\AppData\\Local\\Temp\\pip-install-a7e_bahh\\nvidia-pyindex\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\15151\AppData\Local\Temp\pip-wheel-cho7jhkv'
cwd: C:\Users\15151\AppData\Local\Temp\pip-install-a7e_bahh\nvidia-pyindex\
Complete output (25 lines):
running bdist_wheel
running build
running build_py
creating build
creating build\lib
creating build\lib\nvidia_pyindex
copying nvidia_pyindex\cmdline.py -> build\lib\nvidia_pyindex
copying nvidia_pyindex\utils.py -> build\lib\nvidia_pyindex
copying nvidia_pyindex\__init__.py -> build\lib\nvidia_pyindex
running egg_info
writing nvidia_pyindex.egg-info\PKG-INFO
writing dependency_links to nvidia_pyindex.egg-info\dependency_links.txt
writing entry points to nvidia_pyindex.egg-info\entry_points.txt
writing top-level names to nvidia_pyindex.egg-info\top_level.txt
reading manifest file 'nvidia_pyindex.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'nvidia_pyindex.egg-info\SOURCES.txt'
installing to build\bdist.win-amd64\wheel
running install
'"nvidia_pyindex uninstall"' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
error: [WinError 2] 系统找不到指定的文件。
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
COMMAND: InstallCommand
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
----------------------------------------
ERROR: Failed building wheel for nvidia-pyindex
Running setup.py clean for nvidia-pyindex
Failed to build nvidia-pyindex
Installing collected packages: nvidia-pyindex
Running setup.py install for nvidia-pyindex ... error
ERROR: Command errored out with exit status 1:
command: 'D:\Anaconda\envs\py38trtc250\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\15151\\AppData\\Local\\Temp\\pip-install-a7e_bahh\\nvidia-pyindex\\setup.py'"'"'; __file__='"'"'C:\\Users\\15151\\AppData\\Local\\Temp\\pip-install-a7e_bahh\\nvidia-pyindex\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\15151\AppData\Local\Temp\pip-record-ma8cx0c0\install-record.txt' --single-version-externally-managed --user --prefix= --compile --install-headers 'C:\Users\15151\AppData\Roaming\Python\Python38\Include\nvidia-pyindex'
cwd: C:\Users\15151\AppData\Local\Temp\pip-install-a7e_bahh\nvidia-pyindex\
Complete output (7 lines):
running install
'"nvidia_pyindex uninstall"' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
error: [WinError 2] 系统找不到指定的文件。
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
COMMAND: InstallCommand
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
----------------------------------------
ERROR: Command errored out with exit status 1: 'D:\Anaconda\envs\py38trtc250\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\15151\\AppData\\Local\\Temp\\pip-install-a7e_bahh\\nvidia-pyindex\\setup.py'"'"'; __file__='"'"'C:\\Users\\15151\\AppData\\Local\\Temp\\pip-install-a7e_bahh\\nvidia-pyindex\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\15151\AppData\Local\Temp\pip-record-ma8cx0c0\install-record.txt' --single-version-externally-managed --user --prefix= --compile --install-headers 'C:\Users\15151\AppData\Roaming\Python\Python38\Include\nvidia-pyindex' Check the logs for full command output.