安装sklearn、pyLDAvis过程_pyldavis安装

1. pip install scikit-learn
   报错：twisted 18.7.0 requires PyHamcrest>=1.9.0, which is not installed…
   提示没有安装PyHamcrest
   安装一个就好了
   pip install PyHamcrest

2. 然后安装清华镜像的scikit-learn
   python -m pip install scikit-learn -i https://pypi.tuna.tsinghua.edu.cn/simple
   报错：
   Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
   Requirement already satisfied: scikit-learn in c:\programdata\anaconda3\lib\sit
   -packages (0.19.2)
   就是说人家scikit-learn 已经在了…

3. 安装pip install pyLDAvis
   Could not find a version that satisfies the requirement pandas>=1.2.0 …
   pip无法找到匹配我环境的pandas
   更新pip版本 pip python -m pip install --upgrade pip

4. 继续安装 pyLDAvis
   WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, statu…
   有可能是链接超时错误
   复制版：
   python -m pip install --upgrade pip -i https://pypi.tuna.tsinghua.edu.cn/simple some-package
   pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

5. 再次安装 pyLDAvis
   

6. 错了重来 pip install pyLDAvis -i https://pypi.tuna.tsinghua.edu.cn/simple some-package

成功！
不爱动脑子就是我
同理安装其他库 pip install name -i https://pypi.tuna.tsinghua.edu.cn/simple some-package
更新其他库 pip install -i https://pypi.tuna.tsinghua.edu.cn/simple name --upgrade