How to append to Front of a List in Python

Hello guys. How are you? in this tutorial we will learn about How to append to Front of a List in Python. We can append a list by several methods which we will learn today. By the methods we can add an element at front position or by some methods we can add it at any position we want to add. So without wasting your time lets learn this guys. I hope this will help you.

How to append to Front of a List in Python

Here are the methods which will help you to append the list in python.

  1. append to Front of a List in Python

    to append to Front of a List in Python just Use + operator. By using + operator you can add an element to the list. This is the simplest way to append a list in python. Lets learn this by given below example. add = 16 mylist = [12,15,14,18,20] newlist = [add] + mylist print(newlist) Output : [16, 12, 15, 14, 18, 20]

  2. How to append to Front of a List in Python

    to append to Front of a List in Python just Use insert(). insert() function contain two parameters first one is index number and the second is the value you want to add in list. By using this method you can easily insert the number you want add in list and at any position you want to add it. Thus this is mostly used method. Lets learn this by given example: mylist = [12,15,14,18,20] mylist.insert(0, 24) print(mylist) # To add the element at 1 position mylist = [12,15,14,18,20] mylist.insert(1, 24) print(mylist) Output : [24, 12, 15, 14, 18, 20] [12, 24, 15, 14, 18, 20]

Method 1: Use + operator

By using + operator you can add an element to the list. This is the simplest way to append a list in python. Lets learn this by given below example.

add = 16
mylist = [12,15,14,18,20]
newlist = [add] + mylist
print(newlist)

Output :

[16, 12, 15, 14, 18, 20]

Method 2: Use insert()

insert() function contain two parameters first one is index number and the second is the value you want to add in list. By using this method you can easily insert the number you want add in list and at any position you want to add it. Thus this is mostly used method. Lets learn this by given example:

mylist = [12,15,14,18,20]
mylist.insert(0, 24)
print(mylist)
# To add the element at 1 position
mylist = [12,15,14,18,20]
mylist.insert(1, 24)
print(mylist)

Output :

[24, 12, 15, 14, 18, 20]
[12, 24, 15, 14, 18, 20]

Method 3: Use * operator

The unpacking operator * is used for to append the list at front position. By using it you can add an element at 0 position. Lets learn this by an example:

add = 7
mylist = [19, 22, 40, 1, 78]
mylist = [add, *mylist]
print(mylist)

Output :

[7, 19, 22, 40, 1, 78]

Method 4: Use slicing

slicing is used for append the list. By using it you cn add an element at the position you want to add. Thus this method is also very useful and easy to use . Lets learn about of this by given example:

mylist = [19, 22, 40, 1, 78] 
print ("Original list : " + str(mylist))
mylist[:0] = [7]
print ("new list : " + str(mylist))

Output :

Original list : [19, 22, 40, 1, 78]
new list : [7, 19, 22, 40, 1, 78]

Conclusion

So This is all About This Tutorial. Hope This Tutorial Helped You. Thank You.

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Siddharth

I am an Information Technology Engineer. I have Completed my MCA And I have 4 Year Plus Experience, I am a web developer with knowledge of multiple back-end platforms Like PHP, Node.js, Python and frontend JavaScript frameworks Like Angular, React, and Vue.

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