Make YAPF happy

src/python/grpcio_tests/commands.py

@@ -233,11 +233,12 @@ class TestGevent(setuptools.Command):
 class RunInterop(test.test):
 
     description = 'run interop test client/server'
-    user_options = [('args=', 'a', 'pass-thru arguments for the client/server'),
-                    ('client', 'c', 'flag indicating to run the client'),
-                    ('server', 's', 'flag indicating to run the server'),
-                    ('use_asyncio', 'i', 'flag indicating to run the asyncio stack')
-                   ]
+    user_options = [
+        ('args=', None, 'pass-thru arguments for the client/server'),
+        ('client', None, 'flag indicating to run the client'),
+        ('server', None, 'flag indicating to run the server'),
+        ('use_asyncio', None, 'flag indicating to run the asyncio stack')
+    ]
 
     def initialize_options(self):
         self.args = ''

tools/run_tests/run_interop_tests.py

@@ -679,7 +679,8 @@ class PythonAsyncIOLanguage:
     def client_cmd(self, args):
         return [
             'py37_native/bin/python', 'src/python/grpcio_tests/setup.py',
-            'run_interop', '--use_asyncio', '--client', '--args="{}"'.format(' '.join(args))
+            'run_interop', '--use_asyncio', '--client',
+            '--args="{}"'.format(' '.join(args))
         ]
 
     def client_cmd_http2interop(self, args):