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Since threads are controlled by __start/__stop so there is
no chance to start already running thread.

For me this is perfectly legal - thread was started and has
been terminated, so why not start it second time ?

Queue blocks on use and cant be released/signaled, when it
is used inside thread so thread is blocked too. On windows
platform process is terminated when all its threads are
terminated too - we have deadlock.

example where program hangs on exit:

import time
import threading
import Queue

thqueue = Queue.Queue()
thevent = threading.Event()

def t():
	thevent.set()
	item = thqueue.get()

threading.Thread(target=t).start()

while not thevent.isSet():
	time.sleep(0.1)
print 'exit'