STINNER Victor <vstin...@redhat.com> added the comment:

> The tp_clear handler of OrderedDict can set an exception when fail to 
> allocate a nodes cache for an empty dict. An exception in tp_clear is not 
> expected and caused a crash in the garbage collector.

If it's a cache, it would be better to cancel the caching, and just destroy the 
dictionary, no?

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nosy: +vstinner

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33712>
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