How this underscore work in python?

Question

Using the underscore means the last output...

>>> x=10
>>> x + 9
19
>>> _ + x
29

Can underscore take any type of output?

For example: function

Answer 1

Hushnudbek it's just a variable with name '_'
It can hold everything any other variable can.

Answer 2

Python interpreter stores last expression in a special variable named '_'

In your case it has value 19.

you can also use underscore as a variable name anywhere else.

Answer 3

Can it take function?