diff --git a/html5lib/inputstream.py b/html5lib/inputstream.py
index ec191ab0..63373db9 100644
--- a/html5lib/inputstream.py
+++ b/html5lib/inputstream.py
@@ -1,6 +1,7 @@
from __future__ import absolute_import, division, unicode_literals
+
from six import text_type
-from six.moves import http_client
+from six.moves import http_client, urllib
import codecs
import re
@@ -130,9 +131,12 @@ def _readFromBuffer(self, bytes):
def HTMLInputStream(source, encoding=None, parseMeta=True, chardet=True):
- if isinstance(source, http_client.HTTPResponse):
- # Work around Python bug #20007: read(0) closes the connection.
- # http://bugs.python.org/issue20007
+ # Work around Python bug #20007: read(0) closes the connection.
+ # http://bugs.python.org/issue20007
+ if (isinstance(source, http_client.HTTPResponse) or
+ # Also check for addinfourl wrapping HTTPResponse
+ (isinstance(source, urllib.response.addbase) and
+ isinstance(source.fp, http_client.HTTPResponse))):
isUnicode = False
elif hasattr(source, "read"):
isUnicode = isinstance(source.read(0), text_type)
diff --git a/html5lib/tests/test_stream.py b/html5lib/tests/test_stream.py
index 2a876c1d..4436ef8a 100644
--- a/html5lib/tests/test_stream.py
+++ b/html5lib/tests/test_stream.py
@@ -4,8 +4,10 @@
import unittest
import codecs
from io import BytesIO
+import socket
-from six.moves import http_client
+import six
+from six.moves import http_client, urllib
from html5lib.inputstream import (BufferedStream, HTMLInputStream,
HTMLUnicodeInputStream, HTMLBinaryInputStream)
@@ -170,6 +172,24 @@ def makefile(self, _mode, _bufsize=None):
stream = HTMLInputStream(source)
self.assertEqual(stream.charsUntil(" "), "Text")
+ def test_python_issue_20007_b(self):
+ """
+ Make sure we have a work-around for Python bug #20007
+ http://bugs.python.org/issue20007
+ """
+ if six.PY2:
+ return
+
+ class FakeSocket(object):
+ def makefile(self, _mode, _bufsize=None):
+ return BytesIO(b"HTTP/1.1 200 Ok\r\n\r\nText")
+
+ source = http_client.HTTPResponse(FakeSocket())
+ source.begin()
+ wrapped = urllib.response.addinfourl(source, source.msg, "http://example.com")
+ stream = HTMLInputStream(wrapped)
+ self.assertEqual(stream.charsUntil(" "), "Text")
+
def buildTestSuite():
return unittest.defaultTestLoader.loadTestsFromName(__name__)
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