How do you remove duplicates while preserving original order in Python 3.7+?

Problem Statement

Explanation

Dictionaries preserve insertion order. dict.fromkeys keeps the first time each item appears. You can wrap keys with list to get a list back. Using set loses order. Sorting changes order entirely.

Code Solution

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unique = list(dict.fromkeys([3,1,3,2,1]))  # [3,1,2]

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How do you remove duplicates while preserving original order in Python 3.7+?

Problem Statement

Explanation

Code Solution

Practice Sets

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Master Interviews Anywhere, Anytime

How do you remove duplicates while preserving original order in Python 3.7+?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

Is Python compiled, interpreted, or both?

Which of these joins two lists to make one new list?

Which loop runs until a condition becomes false?

Which method gives the floor value of a float?

In Python, what is the difference between '/' and '//'?

More from Python

Master Interviews
Anywhere, Anytime