How to Find Uncommon Words from Two Strings in Python

Submitted by razormist on Monday, June 22, 2026 - 23:15.

In this tutorial, we will learn how to program "How to Find Uncommon Words from Two Strings in Python". The objective is to find uncommon words from two strings. This tutorial will guide you step by step through the process of identifying uncommon words between two strings. By the end of this tutorial, you will have a solid understanding of how to implement this solution effectively in Python, helping you strengthen your problem-solving abilities and improve your coding skills.

This topic is straightforward and easy to understand. By following the instructions provided, you will be able to complete it with ease. The program will guide you step by step through the process of finding uncommon words from two strings. So, let’s dive into the coding process!

Getting Started:

First you will have to download & install the Python IDLE's, here's the link for the Integrated Development And Learning Environment for Python https://www.python.org/downloads/.

Creating Main Function

This is the main function of the application. The following code will display a simple GUI in terminal console that will display program. To do this, simply copy and paste these blocks of code into the IDLE text editor.

from collections import Counter
 
# MAIN LOOP
while True:
    print("\n============= Find Uncommon Words from Two Strings =============\n")
 
    # Input strings
    s1 = input("Enter the first string: ").strip()
    s2 = input("Enter the second string: ").strip()
 
    if not s1 or not s2:
        print("Strings cannot be empty.")
        continue
 
    # Count word frequencies from both strings
    count = Counter(s1.split()) + Counter(s2.split())
 
    # Find uncommon words
    res = [word for word in count if count[word] == 1]
 
    print("\nUncommon Words:")
    print(res)
 
    # Try Again Option
    opt = input("\nDo you want to try again? (yes/no): ").strip().lower()
 
    if opt == 'no':
        print("Exiting program...")
        break
    elif opt != 'yes':
        print("Invalid choice. Exiting program...")
        break

This program finds uncommon words between two strings using Python’s `Counter` from the `collections` module. It takes two strings as input, counts the frequency of each word from both strings, and identifies words that appear only once across the combined text. The program displays the uncommon words and repeats the process until the user chooses to exit.

Output:

There you have it we successfully created How to Find Uncommon Words from Two Strings in Python. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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