PS D:\python高级> pip install -i https://pypi.tuna.tsinghua.edu.cn/simple maths
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting maths
Using cached https://pypi.tuna.tsinghua.edu.cn/packages/f0/9b/d0501e09552f369338efcc6a001ab96015b2eab91184c8a0f9b105b9a946/maths-0.0.0.tar.gz (961 bytes)
note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed
× Encountered error while generating package metadata.
╰─> See above for output.
note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
maths是什么库。没有这个库吧。python自带的库是叫math，不需要在安装。望采纳！1