What is the use of underscores?

Question

I am a beginner in python I don't know about this
I need help I'm just 14.....

Answer 1

It is unique seperator and can be use as variables in python

Answer 2

refer this link you may understand by this
https://stackoverflow.com/questions/1301346/what-is-the-meaning-of-a-single-and-a-double-underscore-before-an-object-name

Answer 3

well, it is a good separator of names like
this_is_a_variable is a variable. since this-is-a-variable is not

Answer 4

thankyou very much to all those who helped me .