9. Implementing real-time/technical applications using File handling. (copy from one file to another, word count, longest word)

 

#Python Program to copy the contents of one file into another

with open("test.txt") as f:

    with open("out.txt", "w") as f1:

        for line in f:

            f1.write(line)

            print("copied to out file :",line)

Word count

with open("test.txt") as f:

    for line in f:

        print("The original string is : " + line)

    # using split() function

        wordcount = len(line.split())

        # total no of words

        print ("The number of words in string are : " + str(wordcount))

Longest word

def longest_word(filename):

    with open(filename, 'r') as infile:

              words = infile.read().split()

    max_len = len(max(words, key=len))

    return word

 

    for word in words:

            if len(word) == max_len :

                print(longest_word('test.txt'))