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Python Example – Write a Python program to create a deque and append few elements to the left and right, then remove some elements from the left, right sides and reverse the deque

By on Sunday, March 7, 2021

(Python Example for Citizen Data Scientist & Business Analyst)

 

Write a Python program to create a deque and append few elements to the left and right, then remove some elements from the left, right sides and reverse the deque.

 

Sample Solution:

Python Code:


import collections

deque_colors = collections.deque(["Red","Green","White"])
print(deque_colors)

print("\nAdding to the left: ")
deque_colors.appendleft("Pink")
print(deque_colors)

print("\nAdding to the right: ")
deque_colors.append("Orange")
print(deque_colors)

print("\nRemoving from the right: ")
deque_colors.pop()
print(deque_colors)

print("\nRemoving from the left: ")
deque_colors.popleft()
print(deque_colors)

print("\nReversing the deque: ")
deque_colors.reverse()
print(deque_colors)

Sample Output:

deque(['Red', 'Green', 'White'])

Adding to the left: 
deque(['Pink', 'Red', 'Green', 'White'])

Adding to the right: 
deque(['Pink', 'Red', 'Green', 'White', 'Orange'])

Removing from the right: 
deque(['Pink', 'Red', 'Green', 'White'])

Removing from the left: 
deque(['Red', 'Green', 'White'])

Reversing the deque: 
deque(['White', 'Green', 'Red'])

 

Write a Python program to create a deque and append few elements to the left and right, then remove some elements from the left, right sides and reverse the deque

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