How to Get the Union of Lists in Python
In this tutorial, we will learn how to program "How to Get the Union of Lists in Python." The objective is to obtain the union of two or more lists. This tutorial will guide you step by step through the process of computing the union of lists. By the end of this tutorial, you will have a solid understanding of how to implement this task effectively in Python, helping you strengthen your problem-solving abilities and improve your coding skills.
This topic is straightforward to understand. Simply follow the instructions provided, and you will complete it with ease. The program will guide you step by step through the process of computing the union of lists. 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.- while True:
- print("\n================= Get the Union of Lists =================\n")
- try:
- # Input list 1
- l1 = []
- num1 = int(input('Enter size of list 1: '))
- for n in range(num1):
- numbers1 = int(input(f'Enter element {n+1} for list 1: '))
- l1.append(numbers1)
- # Input list 2
- l2 = []
- num2 = int(input('Enter size of list 2: '))
- for n in range(num2):
- numbers2 = int(input(f'Enter element {n+1} for list 2: '))
- l2.append(numbers2)
- # Compute union using set
- union = list(set(l1) | set(l2)) # same as set().union(l1, l2)
- union.sort() # sort for nicer display
- print('The Union of two lists is:', union)
- except ValueError:
- print("Invalid input! Please enter integers only.")
- 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 takes two lists of integers as input from the user, computes their union using Python sets to eliminate duplicates, sorts the result for better readability, and then displays the combined list. It repeats the process until the user chooses to exit.
Output:
There you have it we successfully created How to Get the Union of Lists 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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