From d5b47fb8ce8acefaf952cfa60ec73a875e407e66 Mon Sep 17 00:00:00 2001
From: Senthil Kumaran <senthil@uthcode.com>
Date: Sun, 10 Jul 2016 06:45:38 -0700
Subject: Issue #27466: Change time format returned by
 http.cookie.time2netscape, confirming the netscape cookie format.

---
 Lib/http/cookiejar.py           |  2 +-
 Lib/test/test_http_cookiejar.py | 22 ++++++++++++++++++++++
 Misc/NEWS                       |  4 ++++
 3 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/Lib/http/cookiejar.py b/Lib/http/cookiejar.py
index 265ccf9..4466d2e 100644
--- a/Lib/http/cookiejar.py
+++ b/Lib/http/cookiejar.py
@@ -120,7 +120,7 @@ def time2netscape(t=None):
         dt = datetime.datetime.utcnow()
     else:
         dt = datetime.datetime.utcfromtimestamp(t)
-    return "%s %02d-%s-%04d %02d:%02d:%02d GMT" % (
+    return "%s, %02d-%s-%04d %02d:%02d:%02d GMT" % (
         DAYS[dt.weekday()], dt.day, MONTHS[dt.month-1],
         dt.year, dt.hour, dt.minute, dt.second)
 
diff --git a/Lib/test/test_http_cookiejar.py b/Lib/test/test_http_cookiejar.py
index 585838b..a782608 100644
--- a/Lib/test/test_http_cookiejar.py
+++ b/Lib/test/test_http_cookiejar.py
@@ -31,6 +31,28 @@ class DateTimeTests(unittest.TestCase):
             self.assertRegex(text, r"^\d{4}-\d\d-\d\d \d\d:\d\d:\d\dZ$",
                              "bad time2isoz format: %s %s" % (az, bz))
 
+    def test_time2netscape(self):
+        base = 1019227000
+        day = 24*3600
+        self.assertEqual(time2netscape(base), "Fri, 19-Apr-2002 14:36:40 GMT")
+        self.assertEqual(time2netscape(base+day),
+                         "Sat, 20-Apr-2002 14:36:40 GMT")
+
+        self.assertEqual(time2netscape(base+2*day),
+                         "Sun, 21-Apr-2002 14:36:40 GMT")
+
+        self.assertEqual(time2netscape(base+3*day),
+                         "Mon, 22-Apr-2002 14:36:40 GMT")
+
+        az = time2netscape()
+        bz = time2netscape(500000)
+        for text in (az, bz):
+            # Format "%s, %02d-%s-%04d %02d:%02d:%02d GMT"
+            self.assertRegex(
+                text,
+                r"[a-zA-Z]{3}, \d{2}-[a-zA-Z]{3}-\d{4} \d{2}:\d{2}:\d{2} GMT$",
+                "bad time2netscape format: %s %s" % (az, bz))
+
     def test_http2time(self):
         def parse_date(text):
             return time.gmtime(http2time(text))[:6]
diff --git a/Misc/NEWS b/Misc/NEWS
index 8c92c38..12d0d45 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -16,6 +16,10 @@ Core and Builtins
 Library
 -------
 
+- Issue #27466: Change time format returned by http.cookie.time2netscape,
+  confirming the netscape cookie format and making it consistent with
+  documentation.
+
 - Issue #26664: Fix activate.fish by removing mis-use of ``$``.
 
 - Issue #22115: Fixed tracing Tkinter variables: trace_vdelete() with wrong
-- 
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