How to edit some python strings from terminal (Description for full explanation)

Question

I see in Python Terminal that whenever I installed a module, I always got jealous by the Loading Line.

Like:
Collecting wheel for aiohttp: /

Then it turned to:
Collecting wheel for aiohttp: -

I want help for someone who knows this trick. That is there a function or any sort that prints "Goodbye World" then it suddenly turned to "Hello World".

pls help

Answer 1

by printing out \b you actually able to simulate backspace on the terminal screen. if only your terminal support it.

Answer 2

Thx