[Python-bugs-list] [ python-Bugs-704180 ] Memory leak: threading.Thread.__init__(self, target=self.xx)

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Bugs item #704180, was opened at 2003-03-15 16:44
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=704180&group_id=5470

Category: Threads
Group: Python 2.2.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Darrell Gallion (dgallion)
Assigned to: Nobody/Anonymous (nobody)
Summary: Memory leak: threading.Thread.__init__(self, target=self.xx)

Initial Comment:
This call  
	threading.Thread.__init__(self, target=self.xxx) 
makes this assignment  
	self.__target = target 
Which looks like a circular refrence to me.  
weakref anyone ? 
 
The following test code shows the leak in action. 
 
--Darrell 
 
 
import threading, time 
 
class T1(threading.Thread): 
    def __init__(self, leak=0): 
        self.leak=leak 
        if leak: 
            threading.Thread.__init__(self, target=self.m1) 
        else: 
            threading.Thread.__init__(self) 
        self.start() 
         
    def run(self): 
        pass 
         
    def m1(self): 
        pass 
         
    def __del__(self): 
        print 'DEL:', self, "leak:",self.leak 
         
 
for x in range(10): 
    T1(leak=1) 
for x in range(10): 
    T1() 
time.sleep(1) 
 
 

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=704180&group_id=5470