[issue41919] Modify test_codecs to use the new codecs.unregister() function

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:


New changeset 14cdc215aa952d280c18626005d3aff967901d92 by Hai Shi in branch 'master':
bpo-41919: Avoid resource leak in test_io (GH-22973)
https://github.com/python/cpython/commit/14cdc215aa952d280c18626005d3aff967901d92


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