# Take install python3 as example
1) brew gist-logs pytohn3 ( equals brew postinstall python3 —verbose)
2)
#ls -l /usr/bin/install_name_tool
#otool -L /usr/bin/install_name_tool
3) uninstall python3
#brew uninstall python3
4) access Xcode build license
#sudo xcodebuild -license ( scroll down to the bottom and type agree )
5) brew install python3