File 003-Import-from-flask-scaffold.patch of Package python-flask-restplus

--- a/flask_restplus/api.py
+++ b/flask_restplus/api.py
@@ -16,7 +16,10 @@ from types import MethodType
 
 from flask import url_for, request, current_app
 from flask import make_response as original_flask_make_response
-from flask.helpers import _endpoint_from_view_func
+try:
+    from flask.helpers import _endpoint_from_view_func
+except ImportError:
+    from flask.scaffold import _endpoint_from_view_func
 from flask.signals import got_request_exception
 
 from jsonschema import RefResolver
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