Always assume httplib.request supports streams

Removed support for Python versions < 2.6 and fixed http.next_chunk
not using streams in Python 3.
Addtionally a now unneeded test was removed.
Support for these old Python versions was determined unnecessary.

Author: e00E

googleapiclient/http.py

@@ -827,10 +827,7 @@ def next_chunk(self, http=None, num_retries=0):
         # The upload was complete.
         return (status, body)
 
-    # The httplib.request method can take streams for the body parameter, but
-    # only in Python 2.6 or later. If a stream is available under those
-    # conditions then use it as the body argument.
-    if self.resumable.has_stream() and sys.version_info[1] >= 6:
+    if self.resumable.has_stream():
       data = self.resumable.stream()
       if self.resumable.chunksize() == -1:
         data.seek(self.resumable_progress)

tests/test_discovery.py

@@ -1098,22 +1098,6 @@ def stream(self):
     upload = IoBaseHasStream()
 
     orig_version = sys.version_info
-    sys.version_info = (2, 5, 5, 'final', 0)
-
-    request = zoo.animals().insert(media_body=upload, body=None)
-
-    http = HttpMockSequence([
-      ({'status': '200',
-        'location': 'http://upload.example.com'}, ''),
-      ({'status': '200'}, 'echo_request_headers_as_json'),
-      ])
-
-    # This should not raise an exception because stream() shouldn't be called.
-    status, body = request.next_chunk(http=http)
-    self.assertEqual(body, {
-        'Content-Range': 'bytes 0-9/*',
-        'Content-Length': '10'
-        })
 
     sys.version_info = (2, 6, 5, 'final', 0)