Add EXCLUDED_MEDIA_TYPES setting

Closes #158.

src/drf_yasg/app_settings.py

@@ -26,6 +26,8 @@ SWAGGER_DEFAULTS = {
         'drf_yasg.inspectors.CoreAPICompatInspector',
     ],
 
+    'EXCLUDED_MEDIA_TYPES': ['html'],
+
     'DEFAULT_INFO': None,
     'DEFAULT_API_URL': None,
 

src/drf_yasg/utils.py

@@ -11,6 +11,8 @@ from rest_framework.settings import api_settings as rest_framework_settings
 from rest_framework.utils import encoders, json
 from rest_framework.views import APIView
 
+from drf_yasg.app_settings import swagger_settings
+
 logger = logging.getLogger(__name__)
 
 
@@ -328,7 +330,7 @@ def get_produces(renderer_classes):
     :rtype: list[str]
     """
     media_types = [renderer.media_type for renderer in renderer_classes or []]
-    media_types = [encoding for encoding in media_types if 'html' not in encoding]
+    media_types = [encoding for encoding in media_types if not any(excluded in encoding for excluded in swagger_settings.EXCLUDED_MEDIA_TYPES)]
     return media_types