The python elif function is a part of the if loop and can be used when we have more than two conditions. Usually, you would want to do something like this:
def random_function(variable):
if variable equals 10:
return y
elif variable equals 11:
return x
else:
return z.
As you can see, with this you can control for the different things that variable can stand for.
I wrote this in pseudocode so it's easier to understand :)
