diff --git a/fastapi/openapi/utils.py b/fastapi/openapi/utils.py
index f5c478768..2ce6a379b 100644
--- a/fastapi/openapi/utils.py
+++ b/fastapi/openapi/utils.py
@@ -126,7 +126,10 @@ def get_openapi_operation_parameters(
                     parameter["examples"] = jsonable_encoder(field_info.examples)
                 else:
                     parameter["examples"] = jsonable_encoder(
-                        [{"value": item, "summary": item} for item in field_info.examples]
+                        [
+                            {"value": item, "summary": item}
+                            for item in field_info.examples
+                        ]
                     )
         if field_info.example != Undefined:
             parameter["example"] = jsonable_encoder(field_info.example)
diff --git a/tests/test_schema_extra_examples.py b/tests/test_schema_extra_examples.py
index 2bef1d9a9..982dc6e7a 100644
--- a/tests/test_schema_extra_examples.py
+++ b/tests/test_schema_extra_examples.py
@@ -479,13 +479,13 @@ def test_openapi_schema():
                                 "title": "Item Id",
                                 "type": "string",
                                 "examples": ["item_1", "item_2"],
-                            },                            
+                            },
                             "name": "item_id",
-                            "in": "path",                            
+                            "in": "path",
                             "examples": [
                                 {"value": "item_1", "summary": "item_1"},
                                 {"value": "item_2", "summary": "item_2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -511,7 +511,7 @@ def test_openapi_schema():
                     "summary": "Path Example Examples",
                     "operationId": "path_example_examples_path_example_examples__item_id__get",
                     "parameters": [
-                        {                        
+                        {
                             "required": True,
                             "schema": {
                                 "title": "Item Id",
@@ -520,11 +520,11 @@ def test_openapi_schema():
                             },
                             "example": "item_overridden",
                             "name": "item_id",
-                            "in": "path",                                
+                            "in": "path",
                             "examples": [
                                 {"value": "item_1", "summary": "item_1"},
                                 {"value": "item_2", "summary": "item_2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -612,7 +612,7 @@ def test_openapi_schema():
                             "examples": [
                                 {"value": "query1", "summary": "query1"},
                                 {"value": "query2", "summary": "query2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -661,7 +661,7 @@ def test_openapi_schema():
                             "examples": [
                                 {"value": "query1", "summary": "query1"},
                                 {"value": "query2", "summary": "query2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -749,7 +749,7 @@ def test_openapi_schema():
                             "examples": [
                                 {"value": "header1", "summary": "header1"},
                                 {"value": "header2", "summary": "header2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -798,7 +798,7 @@ def test_openapi_schema():
                             "examples": [
                                 {"value": "header1", "summary": "header1"},
                                 {"value": "header2", "summary": "header2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -886,7 +886,7 @@ def test_openapi_schema():
                             "examples": [
                                 {"value": "cookie1", "summary": "cookie1"},
                                 {"value": "cookie2", "summary": "cookie2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {
@@ -935,7 +935,7 @@ def test_openapi_schema():
                             "examples": [
                                 {"value": "cookie1", "summary": "cookie1"},
                                 {"value": "cookie2", "summary": "cookie2"},
-                            ],                            
+                            ],
                         }
                     ],
                     "responses": {