title: Run a python script in Sublime Text 3
body: <p>In fact my question is simple. I tried the most straightfoward (print("Hello world!")) script in Python 2.7.13  but it doesn't work. I work with Sublime Text 3. Here is a snapshot with the error message :</p>
  
  <p><img src="https://i.stack.imgur.com/pFLdV.png" alt="enter image description here"></p>
  
  <p>And the Python.sublime-build file :</p>
  
  <p><img src="https://i.stack.imgur.com/C9als.png" alt="enter image description here"></p>