[Tutor] Variables in Threaded functions

[lonetwin]

Hi all ye good people,
     I'm kinda new to threaded programming in python (in any language
 for that matter !!). I'd like somebody to clear this up for me.
	 I want to write a class that inherits from threading.Thread,
 whose run() function runs a loop that looks at a self.sequence,
 if there is something left in that sequence it goes and does
 something(self.sequence.pop()). Now a limited (say 3) threads would
 execute. My understanding is (correct me if I'm wrong) all the threads
 share the same self.sequence (if they don't how do I make them share a
 sequence ....without having to put in a global sequence ??) and also
 I'm uncertain about the implications of doing such things (shud I use
 locks ?? ...if I shud....how do I do that ??)
    Basically I want someone to explain how this code works and the
implications of doing such things on a larger scale:

========================================================================

import threading
import time
class Strand(threading.Thread):
	bag = range(100)
	def __init__(self):
		threading.Thread.__init__(self)

	def run(self):
		while len(self.bag):
			print self.bag.pop(),

def main():
	Rope = []

	for x in range(3):
		thread = Strand()
		Rope.append(thread)

	for	thread in Rope:
		thread.start()

	print done

if __name__ == '__main__':
	main()
-- 
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Every oak tree started out as a
couple of nuts who stood their ground.
                                    Anonymous
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