{"id":124893,"date":"2022-05-17T14:21:18","date_gmt":"2022-05-17T14:21:18","guid":{"rendered":"https:\/\/blog.finxter.com\/?p=365014"},"modified":"2022-05-17T14:21:18","modified_gmt":"2022-05-17T14:21:18","slug":"5-best-ways-to-check-a-list-for-duplicates-in-python","status":"publish","type":"post","link":"https:\/\/sickgaming.net\/blog\/2022\/05\/17\/5-best-ways-to-check-a-list-for-duplicates-in-python\/","title":{"rendered":"5 Best Ways to Check a List for Duplicates in Python"},"content":{"rendered":"
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Problem Formulation and Solution Overview<\/h2>\n

In this article, you’ll learn how to check a List<\/a> for Duplicates in Python.<\/p>\n

To make it more fun, we have the following running scenario:<\/p>\n

The Finxter Academy<\/a> has given you an extensive list of usernames. Somewhere along the line, duplicate entries were added. They need you to check if their List<\/a> <\/em>contains duplicates. For testing purposes, a small sampling of this List<\/a> is used.<\/em><\/p>\n

\"\ud83d\udcac\" Question<\/strong>: How would we write Python code to check a List<\/a> for duplicate elements?<\/em><\/p>\n

We can accomplish this task by one of the following options:<\/p>\n