Python List Add/Append Programs (original) (raw)

Last Updated : 06 Feb, 2025

This article covers a wide range of methods for adding elements to a list, including:

• Basic addition techniques like append(), extend(), and insert().
• Appending multiple items, lists, tuples, dictionaries and objects.
• Performing list modifications such as adding at the beginning, middle or end.
• Advanced operations, including conditional appending, padding and merging lists efficiently.
• Performance considerations when using different list operations.

From simple cases like adding numbers to a list to more complex operations like padding lists, handling missing values, or appending to 2D lists, this guide provides insights into Python’s list manipulation capabilities.

• Perform append at beginning of list
• Python List append() Method
• Difference between append() and extend()
• Appending a dictionary to a list
• Appending to 2D List
• Append Elements to Empty List
• Difference between Append, Extend and Insert
• How to Append Multiple Items to a List
• Append Multiple items to List
• Appending To One List In A List Of Lists
• Append Multiple Lists at Once
• Difference Between '+' and 'append'
• How to append None to a list?
• How to Append Objects in a List
• Append String to list
• Append suffix/prefix to strings in list
• Append given number with every element of the list
• Append Missing elements from other List
• Conditional String Append
• Append at front and remove from rear
• Append Odd element twice
• Append Similar Values as Key
• Append List every Nth index
• Append according to Kth character
• How to add Elements to a List
• Add Elements of Two Lists
• Add List Items
• Generate all possible valid IP addresses from given string
• Adding Tuple to List and vice - versa
• Add list at beginning of list
• Find missing and additional values in two lists
• Adding K to each element in a list of integers
• Add Space between Potential Words
• Add list elements to tuples list
• Add custom values key in List of dictionaries
• Add similar value multiple times in list
• Add list elements with a multi-list based on index
• Add items to List While Iterating
• Adding value to sublists
• How to Add Floats to a List
• Add Custom Column to Tuple list
• Increase list size by padding each element by N
• Specific Range Addition in List
• K length Padding in List
• Convert tuple into list by adding the given string after every element
• Add custom borders to matrix
• Remove additional spaces in list
• Add only Numeric Values Present in a List
• Rear Addition of Record
• Add element at alternate position in list
• Lead and Trail padding of strings list
• Add tuple to front of list
• Add K to Minimum element in Column Tuple List
• Add custom dimension in Matrix
• Diagonal element addition among lists
• Optional padding in list elements
• Custom space size padding in Strings List
• Adding N to Kth tuple element
• Add Values into Empty List Using For Loop
• Time Complexity for Adding Element in Python Set vs List

Similar Reads

• Python List Creation Programs Python provides multiple ways to create lists based on different requirements, such as generating lists of numbers, creating nested lists, forming lists of tuples or dictionaries, and more. This article covers various ways to create lists efficiently, including: Generating lists of numbers, strings, 2 min read
• Dictionary Add/Append Programs In this guide, we’ll cover a variety of dictionary add/append operations, from simple key-value insertion to handling nested structures, user input, and list-based dictionaries. We’ll also explore how to concatenate dictionary values, append new data efficiently, and work with tuples as dictionary k 2 min read
• Python - Add List Items Python lists are dynamic, which means we can add items to them anytime. In this guide, we'll look at some common ways to add single or multiple items to a list using built-in methods and operators with simple examples: Add a Single Item Using append()append() method adds one item to the end of the l 3 min read
• How to Append Objects in a List in Python The simplest way to append an object in a list using append() method. This method adds an object to the end of the list. [GFGTABS] Python a = [1, 2, 3] #Using append method to add object at the end a.append(4) print(a) [/GFGTABS]Output[1, 2, 3, 4] Let's look into various other methods to append obje 2 min read
• Python - Append Multiple Lists at Once Our task is to merge multiple lists into a single list by appending all their elements. For example, if the input is a = [1, 2], b = [3, 4], and c = [5, 6], the output should be [1, 2, 3, 4, 5, 6]. Using itertools.chain()itertools.chain() function from the itertools module is another way to combine 4 min read
• Append Text or Lines to a File in Python Appending text or lines to a file is a common operation in programming, especially when you want to add new information to an existing file without overwriting its content. In Python, this task is made simple with built-in functions that allow you to open a file and append data to it. In this tutori 3 min read
• Python List Extend vs Append Python, being a versatile and powerful programming language, provides multiple ways to manipulate lists. Two commonly used methods for adding elements to a list are extend and append. While both serve the purpose of adding elements, they differ in functionality and use cases. In this article, we'll 4 min read
• Output of Python programs | Set 8 Prerequisite - Lists in Python Predict the output of the following Python programs. Program 1 [GFGTABS] Python list = [1, 2, 3, None, (1, 2, 3, 4, 5), ['Geeks', 'for', 'Geeks']] print len(list) [/GFGTABS]Output: 6Explanation: The beauty of python list datatype is that within 3 min read
• Output of Python programs | Set 7 Prerequisite - Strings in Python Predict the output of the following Python programs. These question set will make you conversant with String Concepts in Python programming language. Program 1[GFGTABS] Python var1 = 'Hello Geeks!' var2 = "GeeksforGeeks" print "var1[0]: ", 3 min read
• How to append None to a list? The None keyword in Python represents the absence of a value or a null value, so it is mostly used to initialize a variable or to signify the end of a function or it acts as a placeholder for future data. Let's see how we can append None to a list in Python. Using append() methodThe append() method 2 min read