[issue23720] __del__() order is broken since 3.4.0

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc added the comment:

Actually there *is* a cycle:
  assert a.vector is a.vector.device.__class__.__del__.__globals__['a'].vector

A workaround is to not store objects with __del__ in module globals...
Or have only one (the Main instance in your case)

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nosy: +amaury.forgeotdarc

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23720>
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