[Python] Queues in Python loop does not give me a choice to put input?

I ran this code and had two problems:

1. when I ran it it displays 'Invalid choice please enter a number between 1 and 4' even right after the main menu print
2. when I input the choice 1 it doesn't prompt me to input an item the code just stops

import queue

q1 = queue.Queue()

def enqueue(item):
q1.put(item)
print(f"Enqueued: {item}")

def dequeue():
if not q1.empty():
item = q1.get()
print(f"Dequeued: {item}")
else:
print("Queue is empty.")

def display():
if not q1.empty():
print("Queue:", list(q1.queue))
else:
print("Queue is empty.")

def main():
print("\nQueue Operations:")
print("1. Enqueue")
print("2. Dequeue")
print("3. Display Queue")
print("4. Exit")

choice = input("Enter your choice (1-4): ")

if choice == '1':
item = input("Enter item to enqueue: ")
enqueue(item)
elif choice == '2':
dequeue()
elif choice == '3':
display()
elif choice == '4':
print("Exiting program.")
else:
print("Invalid choice. Please enter a number between 1 and 4.")
main()


my expecting outcome was:

• the menu prints
• I input 1
• input option pops up for me to input an item
• item gets enqueue into q1

my actual outcome:

• main menu prints
• "Invalid choice. Please enter a number between 1 and 4" prints
• prompt to input choice prints
• I input one
• code doesn't prompt for an item for me to input

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