fix: [openapi31] Fixes #146 when anyOf is used in schemas.

sphinxcontrib/openapi/openapi31.py

@@ -302,7 +302,7 @@ def _get_type_from_schema(schema):
             dtype = schema["type"]
         else:
             dtype = set()
-            for t in schema["anyOf"]:
+            for t in schema.get("anyOf", []):
                 if "format" in t.keys():
                     dtype.add(t["format"])
                 else:

tests/testspecs/v3.1/issue-147.yml

@@ -0,0 +1,68 @@
+---
+openapi: "3.1.0"
+info:
+  title: "Reproducer for issue #147"
+components:
+  schemas:
+    HTTPValidationError:
+      properties:
+        detail:
+          items:
+            $ref: '#/components/schemas/ValidationError'
+          title: Detail
+          type: array
+      title: HTTPValidationError
+      type: object
+    ValidationError:
+      properties:
+        loc:
+          items:
+            anyOf:
+            - type: string
+            - type: integer
+          title: Location
+          type: array
+        msg:
+          title: Message
+          type: string
+        type:
+          title: Error Type
+          type: string
+      required:
+      - loc
+      - msg
+      - type
+      title: ValidationError
+      type: object
+paths:
+  /TimeStampTokens/:
+    get:
+      operationId: read_tsts_TimeStampTokens__get
+      parameters:
+      - in: query
+        name: skip
+        required: false
+        schema:
+          default: 0
+          title: Skip
+          type: integer
+      - in: query
+        name: limit
+        required: false
+        schema:
+          default: 100
+          title: Limit
+          type: integer
+      responses:
+        '200':
+          content:
+            application/json:
+              schema: {}
+          description: Successful Response
+        '422':
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/HTTPValidationError'
+          description: Validation Error
+      summary: Read Tsts