built in module queue in python code example

Example 1: queue python

from queue import Queue

q = Queue()

q.size() # returns the current lenght of queue
q.empty() # returns True if empty, False otherwise
q.put(item) 
q.get()

Example 2: python list as queue

# Demonstrate queue implementation using list
 
# Initializing a queue
queue = []
 
# Adding elements to the queue
queue.append('a')
queue.append('b')
print(queue)
 
# Removing elements from the queue
print("\nElements dequeued from queue")
print(queue.pop(0))
print(queue.pop(0))
 
print("\nQueue after removing elements")
print(queue)
 
# print(queue.pop(0)) will raise and IndexError as the queue is now empty