Deduplicate Items in Python | Dataford Interview Questions

Write a Python function to deduplicate a list of items.

Implement def deduplicate(items): to return a new list containing each distinct hashable item once, preserving the order of its first occurrence. The input list may be empty, and the original list must not be modified.

Constraints

0 <= len(items) <= 10^4
Every item is hashable
Items may be integers, strings, or other hashable Python values
Return a new list and do not modify the input list

Function Signature

def deduplicate(items):

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Problem

Write a Python function to deduplicate a list of items.

Constraints

0 <= len(items) <= 10^4
Every item is hashable
Items may be integers, strings, or other hashable Python values
Return a new list and do not modify the input list

Function Signature

def deduplicate(items):

Your question is Deduplicate Items in Python. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.