commit 6f9cd142a20d0d2a5825a9db376ce0ddf1933694
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Thu Apr 04 01:25:59 2019 -0700
committer Serhiy Storchaka <storchaka@gmail.com> Thu Apr 04 11:25:59 2019 +0300
tree 433d5cc461654517e6c39c41bc4fe8fada92a4dd
parent 513d142993bb8c13e6803727fa086e44eafc360f

bpo-36522: Print all values for headers with multiple values. (GH-12681) (GH-12682)

(cherry picked from commit 461c416dd78a98f2bba7f323af8c9738e060b6f2)

Co-authored-by: Matt Houglum <houglum@google.com>

Lib/http/client.py

diff --git a/Lib/http/client.py b/Lib/http/client.py
index 5aa178d..1de151c 100644
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -320,8 +320,8 @@
         self.headers = self.msg = parse_headers(self.fp)
 
         if self.debuglevel > 0:
-            for hdr in self.headers:
-                print("header:", hdr + ":", self.headers.get(hdr))
+            for hdr, val in self.headers.items():
+                print("header:", hdr + ":", val)
 
         # are we using the chunked-style of transfer encoding?
         tr_enc = self.headers.get("transfer-encoding")