From b4a3d461e4a00dfc60047b667aa3136c8b03eda8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Mon, 12 Jun 2017 01:52:24 +0700
Subject: [PATCH] [utils] Handle HTMLParseError in extract_attributes (closes
 #13349)

---
 test/test_utils.py  | 2 ++
 youtube_dl/utils.py | 9 +++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/test/test_utils.py b/test/test_utils.py
index 41b094d89..2b93b3604 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -916,6 +916,8 @@ def test_extract_attributes(self):
             supports_outside_bmp = False
         if supports_outside_bmp:
             self.assertEqual(extract_attributes('<e x="Smile &#128512;!">'), {'x': 'Smile \U0001f600!'})
+        # Malformed HTML should not break attributes extraction on older Python
+        self.assertEqual(extract_attributes('<mal"formed/>'), {})
 
     def test_clean_html(self):
         self.assertEqual(clean_html('a:\nb'), 'a: b')
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 16bf49408..1973bd483 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -36,6 +36,7 @@
 import zlib
 
 from .compat import (
+    compat_HTMLParseError,
     compat_HTMLParser,
     compat_basestring,
     compat_chr,
@@ -409,8 +410,12 @@ def extract_attributes(html_element):
     but the cases in the unit test will work for all of 2.6, 2.7, 3.2-3.5.
     """
     parser = HTMLAttributeParser()
-    parser.feed(html_element)
-    parser.close()
+    try:
+        parser.feed(html_element)
+        parser.close()
+    # Older Python may throw HTMLParseError in case of malformed HTML
+    except compat_HTMLParseError:
+        pass
     return parser.attrs