Removed requests usage from test

tests/integration/test_stubs.py

@@ -1,6 +1,5 @@
 import vcr
 import six.moves.http_client as httplib
-from six.moves.urllib.request import urlopen, Request
 
 from assertions import assert_is_json
 
@@ -51,24 +50,31 @@ def test_multiple_headers(tmpdir, httpbin):
 
 def test_original_decoded_response_is_not_modified(tmpdir, httpbin):
     testfile = str(tmpdir.join('decoded_response.yml'))
-    url = httpbin.url + '/gzip'
-    request = Request(url)
-    outside = urlopen(request)
+    host, port = httpbin.host, httpbin.port
+
+    conn = httplib.HTTPConnection(host, port)
+    conn.request('GET', '/gzip')
+    outside = conn.getresponse()
 
     with vcr.use_cassette(testfile, decode_compressed_response=True):
-        inside = urlopen(request)
+        conn = httplib.HTTPConnection(host, port)
+        conn.request('GET', '/gzip')
+        inside = conn.getresponse()
 
         # Assert that we do not modify the original response while appending
         # to the casssette.
         assert 'gzip' == inside.headers['content-encoding']
 
-        # They should be the same response.
-        assert inside.headers.items() == outside.headers.items()
+        # They should effectively be the same response.
+        assert inside.headers.items() == outside.getheaders()
         assert inside.read() == outside.read()
 
     # Even though the above are raw bytes, the JSON data should have been
     # decoded and saved to the cassette.
     with vcr.use_cassette(testfile):
-        inside = urlopen(request)
+        conn = httplib.HTTPConnection(host, port)
+        conn.request('GET', '/gzip')
+        inside = conn.getresponse()
+
         assert 'content-encoding' not in inside.headers
         assert_is_json(inside.read())