title: Send OSC When Job Done
tags: python net osc

This is a simple script that runs a command, and then sends an OSC message to designated hosts.
```py
from subprocess import run
from pythonosc import udp_client

import sys
args = sys.argv[1:]

info = """
sig_when_done hosts /addr args -- cmd args ...
hosts string:
   a,b,c:4000/d:3000
   expands to
     a:4000 b:4000 c:4000 d:3000
"""
if len(args) == 0:
  print(info)
  exit()

hosts_string = args[0]
hosts_list = []
try:
  for x in hosts_string.split("/"):
    xs = x.split(":")
    if len(xs) > 2:
      raise ValueError(f"Too many :s in {x}")
    if len(xs) == 1:
      port = 2708
      hosts = x
    else:
      hosts, port = xs
      port = int(port)
      if port < 1024 or port > 32000:
        raise ValueError(f"Invalid port {port}")
    hosts = hosts.split(",")
    for host in hosts:
      hosts_list.append((host,port))
except ValueError:
  print(f"Invalid hosts string")

args = args[1:]
osc = []
if "--" in args:
  i = args.index("--")
  osc = args[:i]
  cmd = args[i+1:]
else:
  cmd = args

if len(osc) == 0:
  addr = "/"
  params = []
else:
  addr, *params = osc
  addr = "/"+addr.lstrip("/")


if len(cmd) == 0:
  print(f"No command")
  exit(1)

m = run(cmd)
print(f"Return code {m.returncode}")
print(f"For {cmd}")

for h in hosts_list:
  ip,port = h
  print(f"{addr=} {params=} to {ip}:{port}")
  client = udp_client.SimpleUDPClient(ip,port)
  client.send_message(addr,params)
```