[issue40826] Segfaults on io.FileIO(0).name in 3.9

[Rémi Lapeyre]

Change by Rémi Lapeyre <remi.lapeyre at henki.fr>:


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nosy: +remi.lapeyre, vstinner

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40826>
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