why elif is ued in python code example

Example 1: else if python

if expression1:
   statement(s)
elif expression2:
   statement(s)
elif expression3:
   statement(s)
else:
   statement(s)

Example 2: python if elif

num = 20
if num > 30:
  print("big")
elif num == 30:
  print("same")
else:
  print("small")
#output: small