gh-109538: Avoid RuntimeError when StreamWriter is deleted with closed loop (#111983)

Issue a ResourceWarning instead.

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>

DPR committed 2y ago

e0f512797596282bff63260f8102592aad37cdf1

Parent: fe9db90

Committed by GitHub <noreply@github.com> on 11/15/2023, 1:17:51 AM