How to Program to Flatten a Nested List in Python
In this tutorial, we’ll learn how to program "How to Flatten a Nested List in Python". The objective is to safely flatten any nested list into a single-level list. This tutorial will guide you through the process step by step, helping you understand how to handle nested structures and convert them into a flat format. By the end, you’ll have a clear understanding of how to efficiently perform this task in Python.
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 correct and efficient way to flatten a nested list into a single-level 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.- while True:
- print("\n============= Program to Flatten a Nested List =============\n")
- my_list = [[1], [2, 3], [4, 5, 6, 7], [8,9]]
- 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
This program continuously flattens a nested list by going through each sublist and collecting all the individual elements into a single list, displaying the result each time until the user chooses to exit.
Output:
There you have it we successfully created How to Program to Flatten a Nested List 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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