pip 或者 conda 安装出现permission denied情况的解决方法

问题

> pip install bleach

...
...
Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/xxx/xxx/anaconda3/lib/python3.6/site-packages/bleach-2.1.4-py3.6.egg-info/PKG-INFO'
Consider using the `--user` option or check the permissions.

>conda install pywavelets
Solving environment: failed

NotWritableError: The current user does not have write permissions to a required path.
  path: /xxx/xxx/anaconda3/pkgs/cache/d50cceeb.json
  uid: 501
  gid: 20

解决办法

改变相关文件夹权限。
为了方便，直接对整个anaconda文件夹改变权限，并添加-R更改所有子文件夹权限

>sudo chown -R 501:20 /xxx/xxx/anaconda3/

这个问题比较可能是之前使用了sudo pip或者sudo conda而造成的

վ HᴗP ի