Could someone explain how can i use an empty list?

Answer 1

Okay...this question is crazy old and the OP's not active...so this "special-case" answer is for others.

* You can use empty lists to persist data across function calls, as shown here:

http://docs.python-guide.org/en/latest/writing/gotchas
"Mutable Default Arguments"
-When the Gotcha Isn't a Gotcha

...when you "exploit" or intend the function to maintain state between calls of a function
...such as a "caching function"

Answer 2

you introduce it like that
>>>list =[]
and it is used when you want to append some specific values into it. Hope i helped

Answer 3

Imagine you're going to the store. You take a sheet of paper and title it: Grocery List. That title, equates in code to your empty list. What you add or take from the list, from there, is up to you.

Answer 4

For exemple you can fill it with generating for it random numbers or with the user's input

Answer 5

list=[]