new to python - trouble calling a function from another function

[Brandon McCombs]

Hello,

I'm building an elevator simulator for a class assignment. I recently 
ran into a roadblock and don't know how to fix it. For some reason, in 
my checkQueue function below, the call to self.goUp() is never executed. 
It is on the last line of code I pasted in. I can put print statements 
before and after the call and I have a print statement in goUp() itself. 
  Only the print statements before and after the call are executed. The 
one inside goUp() is never executed because goUp() never seems to be 
executed. How can that be? I don't get any errors when the script 
executes. Surely this isn't some limitation I'm encountering?

thanks

sorry about the formatting

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class Elevator(Process):
def __init__(self,name):
	Process.__init__(self,name=name)
	self.numPassengers = 0
	self.passengerList = []
	self.passengerWaitQ = []
	self.currentFloor = 1
	self.idle = 1
	self.newPassengers = 0
def goUp(self):
	print "here"
	bubbleSort(self.passengerList, len(self.passengerList))
	self.currentFloor += 1
	if len(self.passengerList) > 0:
	   for p in self.passengerList:
	      if self.currentFloor == p.destination:
		yield (p.destination - self.currenteFloor) * TRAVELTIME, self
		reactivate(p)
		p.inBuilding()
	      else:
		self.goUp()

def checkQueue(self):
	if (len(self.passengerWaitQ)) > 0 and len(self.passengerList) < 
MAXCAPACITY:
	if len(self.passengerWaitQ) < MAXCAPACITY:
	    self.newPassengers = len(self.passengerWaitQ)
	else:
             self.newPassengers = MAXCAPACITY - len(self.passengerList)
	for i in range(0,self.newPassengers):
	  self.passengerList.append(self.passengerWaitQ.pop())
	self.goUp()