How to Flatten Nested Lists in Terminal using Python
In this tutorial, we’ll learn how to program "How to Flatten Nested Lists in Python". The objective is to safely and efficiently flatten nested lists into a single-level list. This tutorial will guide you through the simple process of flattening a nested list, with a sample program provided to demonstrate the implementation step by step. So, let’s get started!
This topic is straightforward to understand. Just follow the instructions I provide, and you’ll complete it with ease. The program I’ll demonstrate will show you the proper way to flatten a nested list. 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.- my_list = [[1], [2, 3, 4], [5, 6, 7], [8]]
- while True:
- print("\n================= Flatten Nested Lists =================\n\n")
- flat_list = []
- for sublist in my_list:
- for num in sublist:
- flat_list.append(num)
- print(flat_list)
- opt = input("\nDo you want to try again?(yes/no): ")
- if opt.lower() == 'yes':
- ret=False
- elif opt.lower() == 'no':
- ret=True
- print("Exiting program....")
- else:
- print("Please enter yes/no:")
- break
- if ret == False:
- continue
The program takes a nested list, my_list, which contains multiple sublists, and flattens it into a single list, flat_list. It iterates through each sublist and appends all the elements to the flat_list. After flattening, the program displays the resulting list. The user is then asked if they want to repeat the process or exit. If the user chooses to continue, the program repeats; otherwise, it exits with a confirmation message.
Output:

There you have it we successfully created How to Flatten Nested Lists in Terminal using 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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