title: Python 3 How to get string between two points using regex?
body: <p>How to get the string between two points using regex or any other library in Python 3?</p>
  
  <p>For eg:
  Blah blah ABC the string to be retrieved XYZ Blah Blah</p>
  
  <p>ABC and XYZ are variables which denote the start and end of the string which I have to retrieve.</p>