Splitting large text file by a delimiter in Python

Question

I imaging this is going to be a simple task but I can\'t find what I am looking for exactly in previous StackOverflow questions to here goes...

I have large text fil

Answer 1

If every entry block starts with a colon, you can just split by that:

with  open('entries.txt') as fp:
    contents = fp.read()
    for entry in contents.split(':'):
        # do something with entry