# Create a deque from [1, 2, 3]

Canonical URL: <https://datadriven.io/problems/create-a-deque-from-1-2-3-use-appendleft0-to-add-to-t-b3a2146e>

Domain: Python · Difficulty: medium

## Problem

Create a deque from [1, 2, 3]. Use appendleft(0) to add to the left, and rotate(1) to shift elements right by 1 position. Print the deque after each operation as a list.

## Related

- [All practice problems](https://datadriven.io/problems)
- [Mock interview mode](https://datadriven.io/interview/create-a-deque-from-1-2-3-use-appendleft0-to-add-to-t-b3a2146e)
- [Python Interview Questions](https://datadriven.io/python-interview-questions)
- [Data Engineering Interview Prep Guide](https://datadriven.io/data-engineer-interview-prep)
- [Daily Challenge](https://datadriven.io/daily)

---

Source: DataDriven (https://datadriven.io). 100% free data engineering interview prep. Live code execution against Postgres 16, Python 3.11, and Spark sandboxes. No paywall, no premium tier, no signup gate.