Question: When i install python by brew, it shows error: cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11: unable to copy ACL to /usr/local/Cellar/ca-certificates/./2022-10-11: Permission denied cp: utimensat: /usr/local/Cellar/ca-certificates/.: Permission denied Error: Failure while executing; `cp -pR /private/tmp/d20221129-9397-882a6m/ca-certificates/. /usr/local/Cellar/ca-certificates` exited with 1. Here's the output: cp: /usr/local/Cellar/ca-certificates/./2022-10-11: Permission denied cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11: unable to copy extended attributes to /usr/local/Cellar/ca-certificates/./2022-10-11: Permission denied cp: /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11/.brew: unable to copy extended attributes to /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: /usr/local/Cellar/ca-certificates/./2022-10-11/.brew/ca-certificates.rb: No such file or directory cp: utimensat: /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: chown: /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: chmod: /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: chflags: /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11/.brew: unable to copy ACL to /usr/local/Cellar/ca-certificates/./2022-10-11/.brew: No such file or directory cp: /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11/share: unable to copy extended attributes to /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11/share/ca-certificates: unable to copy extended attributes to /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates/cacert.pem: No such file or directory cp: utimensat: /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: chown: /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: chmod: /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: chflags: /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11/share/ca-certificates: unable to copy ACL to /usr/local/Cellar/ca-certificates/./2022-10-11/share/ca-certificates: No such file or directory cp: utimensat: /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: chown: /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: chmod: /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: chflags: /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11/share: unable to copy ACL to /usr/local/Cellar/ca-certificates/./2022-10-11/share: No such file or directory cp: utimensat: /usr/local/Cellar/ca-certificates/./2022-10-11: No such file or directory cp: chown: /usr/local/Cellar/ca-certificates/./2022-10-11: No such file or directory cp: chmod: /usr/local/Cellar/ca-certificates/./2022-10-11: No such file or directory cp: chflags: /usr/local/Cellar/ca-certificates/./2022-10-11: No such file or directory cp: /private/tmp/d20221129-9397-882a6m/ca-certificates/./2022-10-11: unable to copy ACL to /usr/local/Cellar/ca-certificates/./2022-10-11: Permission denied cp: utimensat: /usr/local/Cellar/ca-certificates/.: Permission denied  HOW can i fix it and install python with brew? Before that, i was installed node and yarn with brew. I have tried uninstalling it and re-installing brew, but it doesn't work. Thank you!

Answer: I had the same issue and managed to fix it the following way: I saw that the upgrade script tried to copy files from /private/tmp/d20221130-21318-e53mkn/ca-certificates/./2022-10-11 to /usr/local/Cellar/ca-certificates/./2022-10-11 and I got a Permission denied meaning - I (the current mac user) could not edit/create files there. So i went to /usr/local/Cellar/ and saw that my user was not the owner of the folder ca-certificates and several others. So i just changed the onwer like this: cd /usr/local/Cellar/ sudo chown -R REPLACE_WITH_YOUR_USERNAME:admin *  And this fix the issue for me. A simple brew upgrde upgraded all my packages after that. Hope this helps !