inventree-phomemo-plugin/inventree_phomemo/server.py

# server.py
# simple listener to an IP port to test the phomemo plugin

import socket

PORT = 9100  # Port to listen on

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('', PORT))
s.listen(1)
while True:
    conn, addr = s.accept()
    print(addr)
    printer = open('test.json', 'wb')
    while True:
        data = conn.recv(91000)
        print('data received')
        print('Sending to printer...')
        printer.write(data)
        if not data:
            break
    printer.close()