Searching for a string in a large text file - profiling various methods in python

Question

This question has been asked many times. After spending some time reading the answers, I did some quick profiling to try out the various methods mentioned previously...

Answer 1

what about a text indexing solution ?

I would use Lucene in the Java world but there is a python engine called Whoosh

https://bitbucket.org/mchaput/whoosh/wiki/Home