Extract Values between two strings in a text file

Question

Lets say I have a Text file with the below content

fdsjhgjhg
fdshkjhk
 Start
     Good Morning
     Hello World
 End
dashjkhjk
dsfjkhk
Start
  hgjkkl
  dfghjjk
          


        

Answer 1

You can do this with regular expressions. This will exclude rogue Start and End lines. Here is a live example

import re

f = open('test.txt','r')
txt = f.read()
matches = re.findall(r'^\s*Start\s*$\n((?:^\s*(?!Start).*$\n)*?)^\s*End\s*$', txt, flags=re.M)