Question

What does "elif" does in python 3.

Answer 1

This is what we call a "syntax sugar". In fact, elif replace

else:

    if ...:

        (command)

it is used because, if there is some other conditions, your code will became

if ... :

   (command)

else:

   if ... :

      (command)

   else:

      if ... :

         (command)

      else:

           if ... :

              (command)

which is very difficult to read. So, all of this could be replaced by :

if ... :

   (command)

elif ... :

   (command)

elif ... :

   (command)

elif ... :

   (command)

elif is used to make the code more "beautifull" and easy to read for you or other developers

(sorry for my bad english )

Answer 2

elif stands for else if. This is a keyword in python, used in else if conditions. 

Note:->     ':' (colon) sign is necessary after giving condition for elif.

Syntax:- 

elif condition:

statement

For more clarity click this link.

 https://www.w3schools.com/python/gloss_python_elif.asp#:~:text=The%20elif%20keyword%20is%20pythons,%2C%20then%20try%20this%20condition%22.

Answer 3

An elif makes the program check for a second condition if the first condition is not met.