how to find text in txt file in python code example

Example 1: get text from txt file python

with open ("data.txt", "r") as myfile:
    data = myfile.read().splitlines()

Example 2: python read text file look for string

f = open(filename,  "r")
   whattoReturn = "None"
   if strToFind in f.read():
      whattoReturn = strToFind