"""Test for process-exit garbage collection

fails with Python 3.4.0
"""
import time

class Child:
    def __init__(self, parent):
        self.parent = parent
        parent.children += 1
    
    def __del__(self):
        print("del child")
        self.parent.children -= 1

class Parent:
    def __init__(self):
        self.children = 0
    
    def child(self):
        return Child(self)
    
    def __del__(self):
        print("del parent")
        while self.children:
            print("parent still has %i children" % self.children)
            time.sleep(0.25)
        print("parent deleted")

p = Parent()
c = p.child()
c2 = p.child()