Learn How to Add Elements in List in Python. Show
In Python, a list is a dynamic array that can hold both homogeneous (all items of the same data type) and heterogeneous (items of different data types) data. The data stored in the list is arranged in order and identified by a unique number or position named index. In the above image, we can see that every element from the list fruits can be accessed by a unique index that starts from 0. A list provides several built-in functions that can be used to execute a wide range of operations on data stored in it. Append(), extend(), insert(), sort(), remove(), pop() and many other methods can be used to operate on lists in Python. In this tutorial, we will learn how to add elements to a list in Python using built-in functions. According to the requirements, the different ways to add elements to lists are explained here.
Python Adds Elements to List ExamplesAs mentioned earlier, a list in Python is a dynamic array, meaning that you can easily add new elements to it. You can add an element at any desired position or the end of the list. The add(), insert(), and extend() methods in Python are used to add elements to a list. We can add elements to a list using the + operator in Python with these methods. Methods to add elements in List in Python:
In the following section of this article, we will see all these methods regarding how to add elements to a list in python. Add an Item to the End: append()
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Append takes only one argument, but we can add another list, heterogenous elements or tupples using append().
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Insert an Item at Specified Index: insert()This method adds an element to the specified position on the list. The index of the list is used to specify the position where new elements are to be added.
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Combine Lists: extend(), + operatorWe can add elements of one list to another using the extend() method and + operator. The extend() method and + operator is used to concatenate/combine one list into another. extend() Method:
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When a string is given as an argument to the extend() method, the string is split into its characters, and each character of the string is added to the original list one by one. Let's an example of the same.
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List Concatenation using + operator:
Let's see an example of how to add elements in List in python using + operator.
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We can one list into the existing list with the help of += operators.
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Adding Another List or Tuple in the Existing List Using slice()
For eg., list[2:5] means to return the slice of the list starting from index 2 and ending at index 5.
Now lets see how to add elements in list in python using slicing.
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We can replace the original element in the list if we change the ending index in the slicing. It will replace the original elements with the new elements in the specified index range. Let's understand this with help of an example.
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Conclusion
Related Articles:List in Python How do I add elements anywhere to a list in Python?Methods to Add Items to a List. insert() – inserts a single element anywhere in the list.. append() – always adds items (strings, numbers, lists) at the end of the list.. extend() – adds iterable items (lists, tuples, strings) to the end of the list.. Can you add objects to a list in Python?Python provides a method called . append() that you can use to add items to the end of a given list. This method is widely used either to add a single item to the end of a list or to populate a list using a for loop.
How do I add a list of elements to a list?How to append one list to another list in Python. Use list. extend() to combine two lists. Use the syntax list1. extend(list2) to combine list1 and list2 .. Use list. append() to add a list inside of a list. Use the syntax list1. ... . Other solutions. Use itertools.chain() to combine many lists.. How do I add multiple values to a list in Python?We can do this in many ways.. append() We can append values to the end of the list. We use the append() method for this. ... . insert() You can insert values in a list with the insert() method. Here, you specify a value to insert at a specific position. ... . extend() extend() can add multiple items to a list. Learn by example:. |