From 24d293f9bc92e8f1b3d921f1392c3d9f38468ff4 Mon Sep 17 00:00:00 2001
From: Dhaval Mehta <20968146+dhaval-mehta@users.noreply.github.com>
Date: Tue, 26 May 2020 02:39:37 +0530
Subject: [PATCH] check tag_objects is list or tuple

---
 rest_framework/schemas/openapi.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rest_framework/schemas/openapi.py b/rest_framework/schemas/openapi.py
index d44352e08..0b5e324f3 100644
--- a/rest_framework/schemas/openapi.py
+++ b/rest_framework/schemas/openapi.py
@@ -29,10 +29,10 @@ class SchemaGenerator(BaseSchemaGenerator):
 
     def __init__(self, title=None, url=None, description=None, patterns=None, urlconf=None, version=None,
                  tag_objects: List[Dict] = None):
-        self.tag_objects = tag_objects
         super().__init__(title, url, description, patterns, urlconf, version)
 
         if tag_objects:
+            assert isinstance(tag_objects, (list, tuple)), 'tag_objects must be list of dict'
             self.tag_objects = tag_objects
 
     def get_info(self):
@@ -115,7 +115,7 @@ class SchemaGenerator(BaseSchemaGenerator):
             'paths': paths,
         }
 
-        if self.tag_objects:
+        if hasattr(self, 'tag_objects'):
             schema['tags'] = self.tag_objects
 
         if len(components_schemas) > 0: