how to look for a word in a file python code example

Example 1: how to check for a particular word in a text file using python

file = open("search.txt")
    print(file.read())
    search_word = input("enter a word you want to search in file: ")
    if(search_word in file.read()):
        print("word found")
    else:
        print("word not found")

Example 2: how to find word in file python

with open('example.txt') as f:
    if 'blabla' in f.read():
        print("true")