I am trying to loop through a list of tupples, which I want to converto to a list of integers.
My function get_ids returns a list of tupples like so: [(8720581,), (8755416,),…]

def send_to_MQ():
    
        
     credentials = pika.PlainCredentials(rabbit_username, 
     rabbit_password)
  connection=pika.BlockingConnection(pika.ConnectionParameters(rabbit_server, 
     rabbit_port,"/", credentials ))
     channel = connection.channel()
    
     channel.queue_declare(queue=rabbit_queue, durable=True)
     mapped_ids=get_mapped_ids()
     for mapped_id in mapped_ids:
         mapped_id=int(mapped_id)
         
         channel.basic_publish(exchange='', routing_key='hhh', body=mapped_id)
     print("Mapped ids sent to RabbitMQ")

When I ran the code above, I got: TypeError: sequence item 0: expected a bytes-like object, tuple found and I tried the following solutions:

for mapped_id in mapped_ids:
         mapped_id=int(mapped_id[0])

but I have this error: TypeError: object of type ‘int’ has no len()

and

for mapped_id in mapped_ids:
             mapped_id=int(mapped_id)

TypeError: int() argument must be a string, a bytes-like object or a real number, not ‘tuple’

>Solution :

Your second and third sample are identical. Both should have worked fine, though. Yet another way to accomplish this could be

mapped_ids = get_ids()
for mapped_id, in mapped_ids:
    channel.basic_publish(exchange='', routing_key='hhhh', body=int(mapped_id))

However, please check if channel.basic_publish actually expects an integer as its body= argument; I would have expected it wants a string.