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How To Add To A List In Python

Last Updated : Jul 25, 2023

How To Add To A List In Python

In this article we will show you the solution of how to add to a list in python, Python provides a lot of methods and operators for handling the addition of items to a list, so this task is fairly common in the language.

In this case, we're talking about .append(). The .append() method allows you to add items to an existing list. A for loop can also be used to populate lists programmatically using .append().

Python is a great language for adding lists, and we'll see how to do it in this topic. In order to understand this topic, we have to understand what a list is in Python.

Variables can be populated with multiple items using Python lists. Items in a list can be ordered in any way, changeable, and allow for the storage of duplicate values.

We will now discuss the idea of how to add lists in python with an example.

Step By Step Guide On How To Add To A List In Python :-

# Declaration of the lt1, lt 2 and lt3 lists
lt1 = []
lt2 = []
lt3 = []
# Takes a numeric number from the user to define the total size of the list
items = int (input (" Enter the total number of the list elements: "))
# Enter the list elements from the user one by one.
print (" Enter the items into List 1 : ")
for i in range(1, items + 1):
    num = int ( input (" Enter the value of %d index is :" %i))
    lt1.append(num) # insert the items into the list1
# Enter the list elements from the user one by one.
print (" Enter the items into the List 2 : ")
for i in range(1, items + 1):
    num = int ( input (" Enter the value of %d index is :" %i))
    lt2.append(num) # insert the items into the list2
for j in range(items):
    lt3.append (lt1[j] + lt2[j]) # add the list items of both list lt1 and lt2 into the lt3
print ("\n Addition of the two lists is ", lt3)
  1. Three empty lists named lt1, lt2, and lt3 are declared.
  2. The user is asked to enter the total number of list elements.
  3. A for loop is used to append items into list 1 by taking input from the user, then adding the input to the list using append() method.
  4. Another for loop is used to append items into list 2 by taking input from the user, then adding the input to the list using append() method.
  5. A for loop is used to iterate through each item in both lt1 and lt2, then adding the items and appending to new list lt3.
  6. The final output is printed on the console showing the sum of list 1 and list 2 in list 3.

Conclusion :-

As a result, we have successfully learned how to add lists in python with an example.

As a result of this article, you have learned how to add elements from a list into a set using Python.

Adding elements to the list with append() is the best way to add them in place.

I hope this article on how to add to a list in python helps you and the steps and method mentioned above are easy to follow and implement.