安装python库问题记录
关于我在Terminal中安装xlwt包的过程中遇到的三次报错QAQ
第一次识失败
输入：pip install xlwt
输出：WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Requirement already satisfied: xlwt in d:\anaconda\lib\site-packages (1.3.0)
解决办法：
下载Win32/Win64 OpenSSL Installer for Windows - Shining Light Productions (slproweb.com)里面的
，安装路径不确定应该放在哪里，反正我安装在了File-Settings-Projest Structure里面所显示的路径
第二次失败
输入：pip install xlwt
输出：Requirement already satisfied: xlwt in d:\anaconda\lib\site-packages (1.3.0)
解决办法：加上--target=，具体格式参考第三次的输入
第三次失败
输入：pip install --target=d:\anaconda\lib\site-packages xlwt
输出：Collecting xlwt
Using cached xlwt-1.3.0-py2.py3-none-any.whl (99 kB)
Installing collected packages: xlwt
Successfully installed xlwt-1.3.0
WARNING: Target directory d:\anaconda\lib\site-packages\xlwt already exists. Specify --upgrade to force replacement.
WARNING: Target directory d:\anaconda\lib\site-packages\xlwt-1.3.0.dist-info already exists. Specify --upgrade to force replacement.
解决办法：在原本代码的末端加上“ --upgrade”，注意有个空格哦
第四次成功
输入：pip install --target=d:\anaconda\lib\site-packages xlwt --upgrade
输出：Collecting xlwt
Using cached xlwt-1.3.0-py2.py3-none-any.whl (99 kB)
Installing collected packages: xlwt
Successfully installed xlwt-1.3.0