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v0.5.1
https://github.com/python/cpython
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Tip revision: 777ba072d61f50cc39427ae87ab63eb3d3d88542 authored by Ɓukasz Langa on 17 February 2020, 22:45:14 UTC
Python 3.8.2rc2
Tip revision: 777ba07
instance.py
import gc

class old_style_class():
    pass
class new_style_class(object):
    pass

a = old_style_class()
del a
gc.collect()
b = new_style_class()
del b
gc.collect()

a = old_style_class()
del old_style_class
gc.collect()
b = new_style_class()
del new_style_class
gc.collect()
del a
gc.collect()
del b
gc.collect()
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