gistfile1.txt

from mycroft.skills.core import MycroftSkill
from mycroft.messagebus.client.ws import WebsocketClient

import sys
import gc

class TestSkill(MycroftSkill):
    def __init__(self):
        super(TestSkill, self).__init__()
        self._dir = './'

    def __del__(self):
        print '==== Deleting {} ===='.format(self.name)


# Works
s = TestSkill()
s = None
gc.collect() #enforce garbage collection to make sure we see the message


# Does not work
ws = WebsocketClient()
s = TestSkill()
print 'Refcount before bind: {}'.format(sys.getrefcount(s))
s.bind(ws)
print 'Refcount after bind: {}'.format(sys.getrefcount(s))
s.shutdown()
print 'Refcount after shutdown: {}'.format(sys.getrefcount(s))
s = None
gc.collect() #enforce garbage collection to make sure we see the message