[SEBA-412] Automated reformat of Python code

Passes of modernize, autopep8, black, then check with flake8

flake8 + manual fixes:
  lib/xos-config
  lib/xos-kafka
  lib/xos-util
  xos/coreapi
  xos/api
  xos/xos_client

Change-Id: Ib23cf84cb13beb3c6381fa0d79594dc9131dc815
diff --git a/lib/xos-genx/xos-genx-tests/test_django_generator.py b/lib/xos-genx/xos-genx-tests/test_django_generator.py
index 4f4dae4..a81f80c 100644
--- a/lib/xos-genx/xos-genx-tests/test_django_generator.py
+++ b/lib/xos-genx/xos-genx-tests/test_django_generator.py
@@ -1,4 +1,3 @@
-
 # Copyright 2017-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,34 +17,36 @@
 import os
 from xosgenx.generator import XOSProcessor, XOSProcessorArgs
 
-VROUTER_XPROTO = os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/xproto/vrouterport.xproto")
+VROUTER_XPROTO = os.path.abspath(
+    os.path.dirname(os.path.realpath(__file__)) + "/xproto/vrouterport.xproto"
+)
 
 # Generate Protobuf from Xproto and then parse the resulting Protobuf
+
+
 class XProtoProtobufGeneratorTest(unittest.TestCase):
     def test_proto_generator(self):
         """
         [XOS-GenX] Generate DJANGO models, verify Fields and Foreign Keys
         """
-        args = XOSProcessorArgs(files = [VROUTER_XPROTO],
-                                target = 'django.xtarget')
+        args = XOSProcessorArgs(files=[VROUTER_XPROTO], target="django.xtarget")
         output = XOSProcessor.process(args)
 
-        fields = filter(lambda s:'Field(' in s, output.splitlines())
+        fields = filter(lambda s: "Field(" in s, output.splitlines())
         self.assertEqual(len(fields), 2)
-        links = filter(lambda s:'Key(' in s, output.splitlines())
+        links = filter(lambda s: "Key(" in s, output.splitlines())
         self.assertEqual(len(links), 2)
 
     def test_optional_relations(self):
         """
         [XOS-GenX] Generate DJANGO models, verify relations
         """
-        xproto = \
-            """
+        xproto = """
             option app_label = "test";
 
             message ENodeB {
             }
-            
+
             message Handover {
             }
 
@@ -55,15 +56,14 @@
             }
             """
 
-        args = XOSProcessorArgs(inputs = xproto,
-                                target = 'django.xtarget')
+        args = XOSProcessorArgs(inputs=xproto, target="django.xtarget")
         output = XOSProcessor.process(args)
 
-        null_true = filter(lambda s: 'null = True' in s, output.splitlines())
-        null_false = filter(lambda s: 'null = False' in s, output.splitlines())
+        null_true = filter(lambda s: "null = True" in s, output.splitlines())
+        null_false = filter(lambda s: "null = False" in s, output.splitlines())
 
-        blank_true = filter(lambda s: 'blank = True' in s, output.splitlines())
-        blank_false = filter(lambda s: 'blank = False' in s, output.splitlines())
+        blank_true = filter(lambda s: "blank = True" in s, output.splitlines())
+        blank_false = filter(lambda s: "blank = False" in s, output.splitlines())
 
         self.assertEqual(len(null_true), 1)
         self.assertEqual(len(null_false), 1)
@@ -74,8 +74,7 @@
         """
         [XOS-GenX] Generate DJANGO models, verify feedback_state fields
         """
-        xproto = \
-            """
+        xproto = """
             option app_label = "test";
 
             message ParentFoo {
@@ -87,8 +86,7 @@
             }
             """
 
-        args = XOSProcessorArgs(inputs = xproto,
-                                target = 'django.xtarget')
+        args = XOSProcessorArgs(inputs=xproto, target="django.xtarget")
         output = XOSProcessor.process(args)
 
         self.assertIn("feedback_state_fields = ['parent_name', 'name']", output)
@@ -97,8 +95,7 @@
         """
         [XOS-GenX] Use django validors for min and max values
         """
-        xproto = \
-            """
+        xproto = """
             option app_label = "test";
 
             message Foo (ParentFoo) {
@@ -106,15 +103,13 @@
             }
             """
 
-        args = XOSProcessorArgs(inputs = xproto,
-                                target = 'django.xtarget')
+        args = XOSProcessorArgs(inputs=xproto, target="django.xtarget")
         output = XOSProcessor.process(args)
 
         self.assertIn("validators=[", output)
         self.assertIn("MinValueValidator(1)", output)
         self.assertIn("MaxValueValidator(10)", output)
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     unittest.main()
-
-