commit 8c43bf1a923754fa6d97772151c6ac23c48759d3
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Mon Jul 19 09:54:45 2021 -0700
committer GitHub <noreply@github.com> Mon Jul 19 18:54:45 2021 +0200
tree 2b735fcf283a48f20d543e1b5989d92ccdaa0d1d
parent 2d0492091e3fce73230b2e88949210c9f1eb194b

bpo-27513: email.utils.getaddresses() now handles Header objects (GH-13797) (GH-27242)

getaddresses() should be able to handle a Header object if passed
one.

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit 89f4c34797de2f0e5045da2b97c1c8cbbb42fbb2)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Lib/email/utils.py

diff --git a/Lib/email/utils.py b/Lib/email/utils.py
index a8e46a7..cfdfeb3 100644
--- a/Lib/email/utils.py
+++ b/Lib/email/utils.py
@@ -109,7 +109,7 @@ def formataddr(pair, charset='utf-8'):
 
 def getaddresses(fieldvalues):
     """Return a list of (REALNAME, EMAIL) for each fieldvalue."""
-    all = COMMASPACE.join(fieldvalues)
+    all = COMMASPACE.join(str(v) for v in fieldvalues)
     a = _AddressList(all)
     return a.addresslist