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-rw-r--r--Misc/NEWS.d/next/Core and Builtins/2023-01-06-09-22-21.gh-issue-91351.iq2vZ_.rst5
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+Fix a case where re-entrant imports could corrupt the import deadlock
+detection code and cause a :exc:`KeyError` to be raised out of
+:mod:`importlib/_bootstrap`. In addition to the straightforward cases, this
+could also happen when garbage collection leads to a warning being emitted --
+as happens when it collects an open socket or file)