Create duplicate in a list

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by vigneshchennai74 dot icon Updated: Feb 22, 2023

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Duplicates refer to repeated values or elements in a data set or collection. In the context of a list, duplicates are values that appear more than once. Handling duplicates is an important part of data analysis and programming, as they can affect the accuracy and reliability of your results. You may want to remove duplicates to simplify your data or avoid double-counting. In other cases, you can retain duplicates to preserve the original data or to count the frequency of values in a dataset. 

Python provides a simple and concise syntax for creating lists, making it easy for programmers to create and manipulate lists in their code. Here are some ways Python helps in creating a list: 

  • List Comprehensions: Python provides a powerful feature called list comprehensions, which allows you to create a new list by applying an expression to each element of an existing list, optionally filtering the elements based on a condition. This makes creating complex lists in a single line of code easy. 
  • Built-in Functions: Python provides many built-in functions that make it easy to create and manipulate lists, such as len, min, max, sum, sorted, reversed, and zip. These functions can save time and simplify code when working with lists. 
  • Libraries: Python has a vast library collection that provides additional functionality for working with lists and other data structures. For example, the NumPy library provides efficient operations on arrays, and the Pandas library provides powerful tools for working with tabular data. 

zip is a built-in Python function that takes two or more iterables (such as lists or tuples) and returns an iterator of tuples where the i-th tuple contains the i-th element from each input iterables. The resulting iterator stops when the shortest input iterable is exhausted. 

Here is an example of how to create duplicates in the list: 

Preview of the output that you will get on running this code.


  1. Copy this code using "Copy" button above and paste it in your Python ide
  2. Run the code to create duplicates in the list

I hope you have found this useful. I have added the version information in the following section.

I found this code snippet by searching "create duplicates in the list" in kandi. you can try any use case.

Environment Tested

In this solution we have used the following versions. Be mindful to change when working with other versions.

  • This solution is created and tested using Vscode version 1.75.1
  • This solution is created using Python version 3.7.15

Using this solution we can able to create a duplicates in our list in python with simple Steps. This process also facilities an easy to use, hassle free method to create a hands-on working version of code which would help us to create a duplicate in our list in python.


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