I'm trying to add python3 to my path by adding a symlink but it's erroring and I'm not sure why.
/usr/bin $ sudo su
sh-3.2# ln -s /Library/Frameworks/Python.framework/Versions/3.7/bin/python3 /usr/bin/python3
ln: /usr/bin/python3: Operation not permitted
sh-3.2# whoami
root
sh-3.2# ls -la | head -n 2
total 139064
drwxr-xr-x 977 root wheel 31264 24 Jul 2018 .
* Edit *
I have symlinked from /usr/local/bin/python3
so that's fine.