user-specific vs all-machine pip install

Question

When I pip install as just any user, things get installed specifically for me; but if I do it as root, they get installed for the entire system (e.g. in /usr/local/bin).

How can I make this choice explicitly? i.e.

1. As a non-root user, indicate I want a system-level install and get prompted for the root password.
2. As a root user, install something just for myself under /root.

Answer 1

For item 2, the following should work (as root):

# pip --user install some_thing_to_install

Not sure about option 1 though.