[3.10] bpo-27513: email.utils.getaddresses() now handles Header objects (GH-13797) #27242
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getaddresses() should be able to handle a Header object if passed
one.
Co-authored-by: Łukasz Langa lukasz@langa.pl
(cherry picked from commit 89f4c34)
Co-authored-by: Zackery Spytz zspytz@gmail.com
https://bugs.python.org/issue27513