temp.py

class Queue(object):
    def __init__(self, size):
        self.queue = list()
        self.size = size

    def enqueue(self, item):
        '''This function adds an item to the rear end of the queue '''

        if (self.isFull() != True):
            self.queue.append(item)
        else:
            print('Queue is Full!')

    def dequeue(self):
        ''' This function removes an item from the front end of the queue '''
        if (self.isEmpty() == False):
            return self.queue.pop(0)
        else:
            print('Queue is Empty!')

    def isEmpty(self):
        ''' This function checks if the queue is empty '''
        return self.queue == []

    def isFull(self):
        ''' This function checks if the queue is full '''
        return len(self.queue) == self.size

    def peek(self):
        ''' This function helps to see the first element at the front end of the queue '''
        if (self.isEmpty() != True):
            return self.queue[0]
        else:
            print('Queue is Empty!')


if __name__ == '__main__':
    myQueue = Queue(10)
    myQueue.enqueue(4)
    myQueue.enqueue(5)
    myQueue.enqueue(6)

    print(myQueue)

    myQueue.enqueue(1)
    myQueue.enqueue(2)
    myQueue.enqueue(3)

    print(myQueue)

    myQueue.dequeue()

    print(myQueue)