Run new autopep8

tornado/gen.py

@@ -1195,7 +1195,7 @@ class Runner(object):
         elif not self.future.done():
             def inner(f):
                 # Break a reference cycle to speed GC.
-                f = None # noqa
+                f = None  # noqa
                 self.run()
             self.io_loop.add_future(
                 self.future, inner)

tornado/test/httpclient_test.py

@@ -608,6 +608,7 @@ class SyncHTTPClientTest(unittest.TestCase):
             # the client finishes with the response (this is noticeable
             # with http/2, which leaves a Future with an unexamined
             # StreamClosedError on the loop).
+
             @gen.coroutine
             def slow_stop():
                 # The number of iterations is difficult to predict. Typically,

tornado/test/import_test.py

@@ -48,6 +48,8 @@ class ImportTest(unittest.TestCase):
 
     def test_import_aliases(self):
         # Ensure we don't delete formerly-documented aliases accidentally.
-        import tornado.ioloop, tornado.gen, tornado.util
+        import tornado.ioloop
+        import tornado.gen
+        import tornado.util
         self.assertIs(tornado.ioloop.TimeoutError, tornado.util.TimeoutError)
         self.assertIs(tornado.gen.TimeoutError, tornado.util.TimeoutError)