How can I convert a list to a deque?

Converting a List to a Deque in Python is straightforward using the collections module. Here's how you can do it:

First, you need to import the deque object from the collections module.

Next, you can initialize a deque object with your list as an argument. This effectively converts the list into a deque.

Here's the Python code example:

from collections import deque

my_list = [1, 2, 3, 4, 5]
my_deque = deque(my_list)

print(my_deque)

In this code:

- from collections import deque imports the deque class from the collections module.

- my_list is the list you want to convert.

- my_deque = deque(my_list) creates a new deque object initialized with the elements from my_list.

- print(my_deque) will output: deque([1, 2, 3, 4, 5]).

This method is efficient because the deque constructor is optimized for this type of conversion.

Deques are useful when you need to perform fast append and pop operations from both ends of a sequence, offering O(1) time complexity for these operations, unlike lists which have O(n) complexity for inserting or removing elements at the beginning.

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