Python Easy Method to Remove Duplicates in LIST

Here's you can remove duplicates in the List using the SET method. It's a simple method. Just you need SET and Print to remove duplicates. The removing duplicates concept useful when you work in Data science projects.

How to Remove Duplicates in List

A list is a collection of elements. The elements can be duplicates or non-duplicates. Our today's task is to remove duplicate elements that present in the List.

3 Steps to Remove Duplicates

• Create a List
• Use SET
• Print the result

1. Create a List With Duplicate Objects in it

my_list = ['The', 'unanimous', 'Declaration', 'of', 'the', 'thirteen','united', 'States', 'of', 'America,', 'When', 'in', 'the', 'Course', 'of', 'human']

2. Use Set Method Over the List: Below is the Sample Code

>>> non_dupes = set(my_list)

3. Use Print Method to display the Final List

>>> print(non_dupes)

Here, if you observe, there are no duplicates. The duplicates are now removed. It displays only non-duplicate values. 

Here 'the' is a duplicate value. That's now removed.

Top List Methods

1. Append
2. Extend
3. Insert
4. Remove
5. pop
6. clear
7. Index
8. Count
9. Sort
10. Reverse
11. Copy

Details of List Methods

Append

Adds an item at end of the list.

Extend

Extends the list by adding all the items.

Insert

Inserts an item at a specified location.

Remove

Removes an item from the list. If there are no items, it gives a value error.

pop

Remove the item at the given position in the list, and return it. If no index is specified, a.pop() removes and returns the last item in the list.

Clear

It removes all the items from the list.

Index

It gets an index for the given value. The index starts from '0'.

Count

It returns no of times a particular value appears.

Sort

It sorts the items.

Reverse

Reverses the items in the list.

Copy

Return a shallow copy of the list.

References

• Python for Professionals