How To Search For A String In Text Files With Python

The aim of this playbook🏁 is to learn how text is to be quickly matched in text files with python

1. steps

  1. open file with with open(<fileName>, <mode>, <encoding>) as fileAlias
with open('example.txt', mode='rt', encoding='utf-8') as f:
if 'example' in

2. example

  • I run unit tests with this checking if the item is deleted properly from an index file (a manifest table of the knowledge base)
def test_delIndexItem():
inpt = "01.03"
with open("index.yaml", mode="rt", encoding="utf-8") as indexFile:
fl =
result = True if inpt in fl else False
assert result == False

3. sources