kill/cancel a started thread

[ellisjb at my-deja.com]

You need to have your thread check for some condition that signals it
to exit.  E.g., stopnicely in the following class (subclass and provide
an action method to do something useful):

class StoppableThread(threading.Thread):
def __init__(self, **kwds):
threading.Thread.__init__(self, **kwds)
self.keepgoing = True

def stopnicely(self):
self.keepgoing = False

def run(self):
while self.keepgoing:
time.sleep(1)
self.action()
print "Thread " + self.getName() + " has stopped"

-Jonathan