Python: Add more number of elements to a deque object from an iterable object

Last update on July 05 2025 07:25:52 (UTC/GMT +8 hours)

9. Add More Elements to a Deque from an Iterable Object

Write a Python program to add more elements to a deque object from an iterable object.

Sample Solution:

Python Code:

# Import the collections module to use the deque data structure
import collections

# Create a tuple 'even_nums' containing even numbers 2, 4, 6, 8, and 10
even_nums = (2, 4, 6, 8, 10)

# Create a deque 'even_deque' from the 'even_nums' tuple
even_deque = collections.deque(even_nums)

# Print a message to indicate that even numbers are being displayed
print("Even numbers:")

# Print the 'even_deque' containing even numbers
print(even_deque)

# Create another tuple 'more_even_nums' containing additional even numbers
more_even_nums = (12, 14, 16, 18, 20)

# Extend the 'even_deque' with the 'more_even_nums' tuple
even_deque.extend(more_even_nums)

# Print a message to indicate that more even numbers are being displayed
print("More even numbers:")

# Print the updated 'even_deque' containing both sets of even numbers
print(even_deque) 

Sample Output:

Even numbers:
deque([2, 4, 6, 8, 10])
More even numbers:
deque([2, 4, 6, 8, 10, 12, 14, 16, 18, 20])

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to extend a deque with elements from a list using the extend() method.
• Write a Python program to merge two deques by adding elements of one into another using extend().
• Write a Python program to add even numbers from a range to a deque and then append additional even numbers from another iterable.
• Write a Python program to use extendleft() to add elements from an iterable in reverse order into a deque.

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