Python Program to Find the Longest Words in a File

In this example, we will write a python program to find the longest words in a file. To better understand this example, make sure you have knowledge of the following tutorials:-

• Python File Operation
• Python Functions

Python Program to Find the Longest Words in a File

Let us assume we have an about.txt file that contains the following paragraph.

def longest_words(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_words('about.txt'))

The output of the above program is:-