title: sum of two number using def function in python
body: <p>feed function using <code>raw_input</code> of <code>sys.argv</code> for sum of two number goes just showing in list </p>
  
  <pre><code>def sum_double(a, b):
      sum = a+b
      if a == b:
              sum = sum*2
              print sum
              return sum
      else :
              print sum
              return  sum
  sum_double(a = raw_input("a"),b = raw_input("b"))
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/XEt4H.png" alt="enter image description here"></p>
  
  <p>if we feed input are 1 and 2 then it will showing 12 instead of 3</p>