[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_parse.py b/lib/xos-genx/xos-genx-tests/test_parse.py
index d7edcb7..8d1ccf5 100644
--- a/lib/xos-genx/xos-genx-tests/test_parse.py
+++ b/lib/xos-genx/xos-genx-tests/test_parse.py
@@ -1,4 +1,3 @@
-
 # Copyright 2017-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,13 +17,13 @@
 from xosgenx.generator import XOSProcessor, XOSProcessorArgs
 from helpers import XProtoTestHelpers
 
+
 class XProtoParseTests(unittest.TestCase):
     def test_global_options(self):
 
         xtarget = XProtoTestHelpers.write_tmp_target("{{ options }}")
 
-        xproto = \
-"""
+        xproto = """
     option kind = "vsg";
     option verbose_name = "vSG Service";
 """
@@ -38,8 +37,7 @@
     def test_basic_proto(self):
         xtarget = XProtoTestHelpers.write_tmp_target("{{ proto }}")
 
-        xproto = \
-"""
+        xproto = """
 message Person {
   required string name = 1;
   required int32 id = 2;  // Unique ID number for this person.
@@ -66,8 +64,7 @@
     def test_link_extensions(self):
 
         xtarget = XProtoTestHelpers.write_tmp_target("{{ proto.messages.0.links }}")
-        xproto = \
-"""
+        xproto = """
 message links {
     required manytoone vrouter_service->VRouterService:device_ports = 4 [db_index = True, null = False, blank = False];
 }
@@ -79,9 +76,10 @@
         self.assertIn("VRouterService", output)
 
     def test_through_extensions(self):
-        xtarget = XProtoTestHelpers.write_tmp_target("{{ proto.messages.0.links.0.through }}")
-        xproto = \
-"""
+        xtarget = XProtoTestHelpers.write_tmp_target(
+            "{{ proto.messages.0.links.0.through }}"
+        )
+        xproto = """
 message links {
     required manytomany vrouter_service->VRouterService/ServiceProxy:device_ports = 4 [db_index = True, null = False, blank = False];
 }
@@ -93,9 +91,10 @@
         self.assertIn("ServiceProxy", output)
 
     def test_message_options(self):
-        xtarget = XProtoTestHelpers.write_tmp_target("{{ proto.messages.0.options.type }}")
-        xproto = \
-"""
+        xtarget = XProtoTestHelpers.write_tmp_target(
+            "{{ proto.messages.0.options.type }}"
+        )
+        xproto = """
 message link {
     option type = "e1000";
 }
@@ -108,8 +107,7 @@
 
     def test_message_base(self):
         xtarget = XProtoTestHelpers.write_tmp_target("{{ proto.messages.0.bases }}")
-        xproto = \
-"""
+        xproto = """
 message base(Base) {
 }
 """
@@ -120,7 +118,6 @@
         output = XOSProcessor.process(args)
         self.assertIn("Base", output)
 
-if __name__ == '__main__':
+
+if __name__ == "__main__":
     unittest.main()
-
-