zmq lost message PUSH/PULL

output.txt

$ python push.py 
message n°0
message n°1
message n°2
message n°3
message n°4
message n°5
message n°6
message n°7
message n°8
message n°9


python pull.py 
Received message n°0
Received message n°1
Received message n°4
Received message n°7

python pull.py
Received message n°2
Received message n°5
Received message n°8

Lost message 3,6 and 9

pull.py

import zmq

context = zmq.Context()

socket = context.socket(zmq.PULL)
socket.connect("tcp://127.0.0.1:5557")

while True:
    print("Received %s" % socket.recv_string())

push.py

import time
import zmq

context = zmq.Context()
socket = context.socket(zmq.PUSH)
socket.bind("tcp://127.0.0.1:5557")

for i in range(10):
    message = "message n°%d" % i
    print(message)
    socket.send_string(message)
    time.sleep(1)

any udpate?

no update, the issue is still present