pyOSC simple Server

Question

I'm working on a simple program where Max-msp send some integers via OSC to python. I'm using the pyOSC library for python. Now i can easily print the numbers but i can't decode it and use it as an integer inside python (i'm noob).

ideas?

import OSC
import time, threading

receive_address = '127.0.0.1', 9000

def printing_handler(addr, tags, stuff, source):
    print "---"
    print "received new osc msg from %s" % OSC.getUrlStr(source)
    print "with addr : %s" % addr
    print "typetags %s" % tags
    print "data %s" % stuff
    print "---"

s = OSC.OSCServer(receive_address) 
s.addMsgHandler("/numero", printing_handler) 

st = threading.Thread( target = s.serve_forever )
st.start()

thank you very much !

just taking the data number and transform it to an integer to use inside my program — okgo, Sep 24 '17 at 21:29
Sure, and `int()` casting doesn't work? What are the errors when you try? — OneCricketeer, Sep 24 '17 at 21:31
just int(stuff) is :"int() argument must be a string or a number, not 'list'" — okgo, Sep 24 '17 at 21:33
int(stuff[0]) : Message-callback did not return OSCMessage or None: --- — okgo, Sep 24 '17 at 21:33
Well, `stuff` is a rather non-descriptive name and I don't know what type that actually is. If it's a list, I don't know what types are inside — OneCricketeer, Sep 24 '17 at 21:35
Okay, well, assuming there are strings in the list `int(stuff[0])` is correct. Can you `print type(stuff[0])`? — OneCricketeer, Sep 24 '17 at 21:49
Alright, then there you go. No need to have `int(stuff[0])` just `print "data %d" % stuff[0]` should be fine — OneCricketeer, Sep 24 '17 at 21:53

score 0 · Answer 1 · answered Sep 24 '17 at 21:54

0

It's not clear what all the types / length of stuff is, but, for example if type(stuff[0]) is already <type 'int'>, then you can simply use that value as-is.

answered Sep 24 '17 at 21:54

OneCricketeer

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but then if i want to assign stuff[0] to a variable? – okgo Sep 24 '17 at 22:04
If you want the integer, then yes – OneCricketeer Sep 25 '17 at 01:22
but then if i return the values i get: " did not return OSCMessage or None: – okgo Sep 25 '17 at 07:25
Why are you trying to return anything? – OneCricketeer Sep 25 '17 at 12:24
i need that integer for using it inside my python program – okgo Sep 25 '17 at 14:49
You can't `return` that integer from `printing_handler`, though. That's what the error is telling you. You can *use the integer* fine – OneCricketeer Sep 25 '17 at 15:44

score 0 · Answer 2 · answered Sep 25 '17 at 09:27

0

stuff is the OSC message's arguments. You should be able to retrieve them directly. Let's say you're sending 3 ints from Max, you should be able to do something like this:

def printing_handler(addr, tags, stuff, source):
    print "---"
    arg1 = stuff[0]
    arg2 = stuff[1]
    arg3 = stuff[2]
    print "received",arg1,arg2,arg3
    print "---"

If it helps, you can try playing with the pyOSC example code:

Max5 OSCTester.maxpat
knect-rcv.py

answered Sep 25 '17 at 09:27

George Profenza

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thank you, the problem is that if i try to return arg1 for example i get the error: Message-callback did not return OSCMessage or None: – okgo Sep 25 '17 at 14:56
strange, I've just tested with the snippet above with 3 numbers sent from max and it worked. is there anything else in your script ? – George Profenza Sep 25 '17 at 15:30
yes the code above works really well, the problem is that i would like to export arg1 for example and use it outside the script – okgo Sep 25 '17 at 15:46
Sorry, but it's unclear how you are planning to export arg1 and use it outside the script. Could you please clarify ? If you want to use arg1 outside the callback function, create arg1 outside the scope function, but remember to use the `global arg1` inside the callback if you are not using a class (e.g. `self`) – George Profenza Sep 25 '17 at 15:50

pyOSC simple Server

2 Answers2