[issue17852] Built-in module _io can loose data from buffered files at exit

[Armin Rigo]

Armin Rigo added the comment:

To add to the confusion: Antoine's example produces an empty file on the current trunk cd282dd0cfe8.  When I first tried it on a slightly older trunk (157 changesets ago), it correctly emitted a file with "barXXX ", but only if "gc.collect()" was present.  Without "gc.collect()" it didn't.  This seems at odds with the explanation that "gc.collect()" should be what occurs at shut-down now.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17852>
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