python look for specific word in text file 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 read specific words from a file in python

fo = open("output.txt", "r+")
str = fo.readline()
str = str[7:11]
print "Read String is : ", str
fo.close()