Sending OSC messages from Pythonista with pyOSC: http://bit.ly/1Vl8PCN

osc_client.py

#!/usr/bin/env python

# Get pyOSC here: https://trac.v2.nl/wiki/pyOSC
# The GitHub-hosted version of pyOSC is for Python 3 which isn't supported by Pythonista at the moment
from OSC import OSCClient, OSCMessage

client = OSCClient()
client.connect(("192.168.43.120", 8000))

msg = OSCMessage("/msg/notes")
msg.append([50, 60])
client.send(msg)

msg.clearData();
msg.append(["C3", 127])
client.send(msg)

client.send(OSCMessage("/quit"))

osc_server.py

#!/usr/bin/env python

# Get pyOSC here: https://trac.v2.nl/wiki/pyOSC
# The GitHub-hosted version of pyOSC is for Python 3 which isn't supported by Pythonista at the moment
from OSC import OSCServer

server = OSCServer(("192.168.43.120", 8000))
server.timeout = 0

print "OSC Sever started. Press Ctrl-C to stop."


def handler(addr, tags, data, client_address):
    s = "Message '%s' from %s: " % (addr, client_address) + str(data)
    print s


def quit_handler(addr, tags, data, client_address):
    print "OSC Server quit."
    server.close()

server.addMsgHandler('/msg/notes', handler)
server.addMsgHandler('/quit', quit_handler)
server.serve_forever()