title: How to get line numbers in my python 2.7 script mode?
body: <p>I been using Dev-C++ and I am quite use to it's user interface and line numbers, because its easy for me to debug my code and error has I'm a beginner in programming field I do a lot of error in programs but can debug using line no on its left side. 
  I start python 2.7 recently and am having trouble look for error because it has no line numbers in script mode and I have to count line from top if the error is in 29 or 40 line.
  I have seen YouTube video tutorials were they have line numbers in their python script mode, I have been looking for them but couldn't find them.
  So if anyone can guide or help me with this, so I can do my programming in python easily.
  Attaching pictures so that to be clear what I'm asking for:
  ;<a href="https://i.stack.imgur.com/bGyt0.png" rel="nofollow noreferrer">1</a></p>