diff --git a/rest_framework/management/commands/generateschema.py b/rest_framework/management/commands/generateschema.py
index 9dcb55f34..b4ed759b3 100644
--- a/rest_framework/management/commands/generateschema.py
+++ b/rest_framework/management/commands/generateschema.py
@@ -6,7 +6,7 @@ from rest_framework.schemas import coreapi
 from rest_framework.schemas.openapi import SchemaGenerator
 
 OPENAPI_MODE = 'openapi'
-OPENAPI_AGID_MODE = 'openapi-agid' # WiP
+OPENAPI_AGID_MODE = 'openapi-agid'
 COREAPI_MODE = 'coreapi'
 
 
diff --git a/rest_framework/schemas/agid_schema_views.py b/rest_framework/schemas/agid_schema_views.py
index 2d8dd4ed0..da8e1002e 100644
--- a/rest_framework/schemas/agid_schema_views.py
+++ b/rest_framework/schemas/agid_schema_views.py
@@ -21,13 +21,13 @@ basic use-cases:
 Other access should target the submodules directly
 """
 from rest_framework.settings import api_settings
+
+from . import openapi_agid  # noqa
+from .inspectors import DefaultSchema  # noqa
+
 api_settings.defaults['DEFAULT_SCHEMA_CLASS'] = \
     'rest_framework.schemas.openapi_agid.AgidAutoSchema'
 
-from . import openapi_agid
-#  from .openapi_agid import AgidAutoSchema, AgidSchemaGenerator  # noqa
-from .inspectors import DefaultSchema  # noqa
-
 
 def get_schema_view(
         title=None, url=None, description=None, urlconf=None, renderer_classes=None,
diff --git a/rest_framework/schemas/generators.py b/rest_framework/schemas/generators.py
index afd6b786b..96409193d 100644
--- a/rest_framework/schemas/generators.py
+++ b/rest_framework/schemas/generators.py
@@ -167,7 +167,7 @@ class BaseSchemaGenerator:
         self.url = url
         self.endpoints = None
 
-        for k,v in kwargs.items():
+        for k, v in kwargs.items():
             setattr(self, k, v)
 
     def _initialise_endpoints(self):
diff --git a/rest_framework/schemas/openapi_agid.py b/rest_framework/schemas/openapi_agid.py
index 3428a6ccc..5da69127b 100644
--- a/rest_framework/schemas/openapi_agid.py
+++ b/rest_framework/schemas/openapi_agid.py
@@ -1,10 +1,10 @@
-from rest_framework import (
-    RemovedInDRF314Warning, exceptions, renderers, serializers
-)
+import warnings
 from urllib.parse import urljoin
 
-from . openapi import SchemaGenerator, AutoSchema
-from . utils import get_pk_description, is_list_view
+from rest_framework import serializers
+
+from .openapi import AutoSchema, SchemaGenerator
+from .utils import is_list_view
 
 
 class AgidSchemaGenerator(SchemaGenerator):
@@ -31,8 +31,8 @@ class AgidSchemaGenerator(SchemaGenerator):
         return servers
 
     def get_tags(self):
-        tags =  getattr(self, 'tags', {}),
-        return tags[0] if isinstance(tags, tuple) else tags
+        tags = getattr(self, 'tags', {})
+        return tags
 
     def get_schema(self, request=None, public=False):
         """
@@ -92,7 +92,6 @@ class AgidSchemaGenerator(SchemaGenerator):
         return schema
 
 
-
 class AgidAutoSchema(AutoSchema):
 
     def get_responses(self, path, method):
diff --git a/tests/schemas/test_openapi.py b/tests/schemas/test_openapi.py
index d483f3d45..f80507142 100644
--- a/tests/schemas/test_openapi.py
+++ b/tests/schemas/test_openapi.py
@@ -54,7 +54,7 @@ class TestFieldMapping(TestCase):
         cases = [
             (serializers.ListField(), {'items': {}, 'type': 'array'}),
             (serializers.ListField(child=serializers.BooleanField()), {'items': {'type': 'boolean'}, 'type': 'array'}),
-            (serializers.ListField(child=serializers.FloatField()), {'items': {'type': 'number'}, 'type': 'array'}),
+            (serializers.ListField(child=serializers.FloatField()), {'items': {'type': 'number', 'format': 'float'}, 'type': 'array'}),
             (serializers.ListField(child=serializers.CharField()), {'items': {'type': 'string'}, 'type': 'array'}),
             (serializers.ListField(child=serializers.IntegerField(max_value=4294967295)),
              {'items': {'type': 'integer', 'maximum': 4294967295, 'format': 'int64'}, 'type': 'array'}),