can you recover from reassigning __builtins__ in python?

Question

If I open up interactive mode and type:

__builtins__ = 0 # breaks everything

have I completely broken the session? If so, what is going on

Answer 1

Basically messing with protected and reserved names means breaking your session, sometimes without a way to recover from.

For example, you can type in shell:

True = False # The chaos begins!

These are not possible with other programming languages, but python lets you do what you want, even if it'll break everything.