[issue43423] Subprocess IndexError possible in _communicate

[Gregory P. Smith]

Gregory P. Smith <greg at krypto.org> added the comment:

The bug is fixed, Thanks Chris!  There was a refactoring noted as being nice in my comments on the primary main branch PR that would be nice to have.  But isn't critical.  If you want to make a PR for that, just reuse this bpo-43423 issue number on the PR and assign it to me.

The backports to 3.9 an 3.8 are approved and should automerge after CI finishes.

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resolution:  -> fixed
stage: patch review -> commit review
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43423>
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