From e08d32381d749bc4f3e4302e067076fa8c4e0661 Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Tue, 19 Apr 2022 18:20:03 -0700 Subject: [PATCH] gh-87497: Document that urllib.request sends headers in camel case (GH-24661) (#91517) Co-authored-by: Jelle Zijlstra (cherry picked from commit 325d6f50357474c7d9fd2475be0e2481f7ae0476) Co-authored-by: Alix Lourme --- Doc/library/urllib.request.rst | 1 + Lib/test/test_urllib2_localnet.py | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/Doc/library/urllib.request.rst b/Doc/library/urllib.request.rst index 659a3632ac9be8..9573683dd05944 100644 --- a/Doc/library/urllib.request.rst +++ b/Doc/library/urllib.request.rst @@ -218,6 +218,7 @@ The following classes are provided: (X11; U; Linux i686) Gecko/20071127 Firefox/2.0.0.11"``, while :mod:`urllib`'s default user agent string is ``"Python-urllib/2.6"`` (on Python 2.6). + All header keys are sent in camel case. An appropriate ``Content-Type`` header should be included if the *data* argument is present. If this header has not been provided and *data* diff --git a/Lib/test/test_urllib2_localnet.py b/Lib/test/test_urllib2_localnet.py index 1b2baf2f366b56..fe2ff81a24e694 100644 --- a/Lib/test/test_urllib2_localnet.py +++ b/Lib/test/test_urllib2_localnet.py @@ -614,6 +614,15 @@ def test_sending_headers(self): pass self.assertEqual(handler.headers_received["Range"], "bytes=20-39") + def test_sending_headers_camel(self): + handler = self.start_server() + req = urllib.request.Request("http://localhost:%s/" % handler.port, + headers={"X-SoMe-hEader": "foobar"}) + with urllib.request.urlopen(req): + pass + self.assertIn("X-Some-Header", handler.headers_received.keys()) + self.assertNotIn("X-SoMe-hEader", handler.headers_received.keys()) + def test_basic(self): handler = self.start_server() with urllib.request.urlopen("http://localhost:%s" % handler.port) as open_url: