Bug? print statement ends with ',' print a new line

[Lu]

C:\FAT32\py>type counter.py
import sys
import threading

class Counter:
    def __init__(self,count=0):
        self.count=count
    def start(self):
        if self.count>0:
            print self.count,'.',
            self.count-=1
            t=threading.Timer(1,self.start)
            t.start()
        elif self.count==0:
            print self.count

counter=Counter(int(sys.argv[1]))
counter.start()

C:\FAT32\py>counter.py 5
5 .
4 . 3 . 2 . 1 . 0

C:\FAT32\py>