Blinker Example

from blinker import Namespace

signaler = Namespace()
message_sent = signaler.signal('message_sent')

def console_log(data):
    print "CONSOLE: %s" % data

message_sent.connect(console_log)

def colesterol(val):
    print "Pouco colesterol."
message_sent.connect(colesterol, sender='alcatra')

for i in 'maminha picanha fraldinha alcatra'.split():
    message_sent.send(i)