asyncio: pep8-ify the code.

Lib/asyncio/base_events.py

@@ -605,10 +605,10 @@ class BaseEventLoop(events.AbstractEventLoop):
         return transport, protocol
 
     @tasks.coroutine
-    def subprocess_exec(self, protocol_factory, program, *args, stdin=subprocess.PIPE,
+    def subprocess_exec(self, protocol_factory, program, *args,
-                        stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                        stdin=subprocess.PIPE, stdout=subprocess.PIPE,
-                        universal_newlines=False, shell=False, bufsize=0,
+                        stderr=subprocess.PIPE, universal_newlines=False,
-                        **kwargs):
+                        shell=False, bufsize=0, **kwargs):
         if universal_newlines:
             raise ValueError("universal_newlines must be False")
         if shell:
@@ -623,7 +623,8 @@ class BaseEventLoop(events.AbstractEventLoop):
                                 % type(arg).__name__)
         protocol = protocol_factory()
         transport = yield from self._make_subprocess_transport(
-            protocol, popen_args, False, stdin, stdout, stderr, bufsize, **kwargs)
+            protocol, popen_args, False, stdin, stdout, stderr,
+            bufsize, **kwargs)
         return transport, protocol
 
     def set_exception_handler(self, handler):

Lib/asyncio/subprocess.py

@@ -180,8 +180,9 @@ def create_subprocess_shell(cmd, stdin=None, stdout=None, stderr=None,
     return Process(transport, protocol, loop)
 
 @tasks.coroutine
-def create_subprocess_exec(program, *args, stdin=None, stdout=None, stderr=None,
+def create_subprocess_exec(program, *args, stdin=None, stdout=None,
-                           loop=None, limit=streams._DEFAULT_LIMIT, **kwds):
+                           stderr=None, loop=None,
+                           limit=streams._DEFAULT_LIMIT, **kwds):
     if loop is None:
         loop = events.get_event_loop()
     protocol_factory = lambda: SubprocessStreamProtocol(limit=limit,

Lib/test/test_asyncio/test_subprocess.py

@@ -21,6 +21,7 @@ PROGRAM_CAT = [
               'sys.stdout.buffer.write(data)'))]
 
 class SubprocessMixin:
+
     def test_stdin_stdout(self):
         args = PROGRAM_CAT
 
@@ -132,6 +133,7 @@ class SubprocessMixin:
 if sys.platform != 'win32':
     # Unix
     class SubprocessWatcherMixin(SubprocessMixin):
+
         Watcher = None
 
         def setUp(self):
@@ -151,14 +153,20 @@ if sys.platform != 'win32':
             self.loop.close()
             policy.set_event_loop(None)
 
-    class SubprocessSafeWatcherTests(SubprocessWatcherMixin, unittest.TestCase):
+    class SubprocessSafeWatcherTests(SubprocessWatcherMixin,
+                                     unittest.TestCase):
+
         Watcher = unix_events.SafeChildWatcher
 
-    class SubprocessFastWatcherTests(SubprocessWatcherMixin, unittest.TestCase):
+    class SubprocessFastWatcherTests(SubprocessWatcherMixin,
+                                     unittest.TestCase):
+
         Watcher = unix_events.FastChildWatcher
+
 else:
     # Windows
     class SubprocessProactorTests(SubprocessMixin, unittest.TestCase):
+
         def setUp(self):
             policy = asyncio.get_event_loop_policy()
             self.loop = asyncio.ProactorEventLoop()

Lib/test/test_asyncio/test_tasks.py

@@ -876,6 +876,7 @@ class TaskTests(unittest.TestCase):
         self.assertEqual(set(f.result() for f in done), {'a', 'b'})
 
     def test_as_completed_duplicate_coroutines(self):
+
         @asyncio.coroutine
         def coro(s):
             return s
@@ -884,7 +885,8 @@ class TaskTests(unittest.TestCase):
         def runner():
             result = []
             c = coro('ham')
-            for f in asyncio.as_completed([c, c, coro('spam')], loop=self.loop):
+            for f in asyncio.as_completed([c, c, coro('spam')],
+                                          loop=self.loop):
                 result.append((yield from f))
             return result
 

Lib/test/test_asyncio/test_unix_events.py

@@ -367,7 +367,8 @@ class UnixReadPipeTransportTests(unittest.TestCase):
         tr._close.assert_called_with(err)
         m_logexc.assert_called_with(
             test_utils.MockPattern(
-                'Fatal read error on pipe transport\nprotocol:.*\ntransport:.*'),
+                'Fatal read error on pipe transport'
+                '\nprotocol:.*\ntransport:.*'),
             exc_info=(OSError, MOCK_ANY, MOCK_ANY))
 
     @unittest.mock.patch('os.read')
@@ -664,7 +665,8 @@ class UnixWritePipeTransportTests(unittest.TestCase):
         self.assertTrue(tr._closing)
         m_logexc.assert_called_with(
             test_utils.MockPattern(
-                'Fatal write error on pipe transport\nprotocol:.*\ntransport:.*'),
+                'Fatal write error on pipe transport'
+                '\nprotocol:.*\ntransport:.*'),
             exc_info=(OSError, MOCK_ANY, MOCK_ANY))
         self.assertEqual(1, tr._conn_lost)
         test_utils.run_briefly(self.loop)