allow to work in 2.7

sdk/core/azure-core/azure/core/pipeline/policies/_universal.py

@@ -618,11 +618,18 @@ def deserialize_from_http_generics(
             mime_type = "application/json"
 
         # Rely on transport implementation to give me "text()" decoded correctly
-        if hasattr(response, "read") and not inspect.iscoroutinefunction(response.read):
-            # since users can call deserialize_from_http_generics by themselves
-            # we want to make sure our new responses are read before we try to
-            # deserialize. Only read sync responses since we're in a sync function
-            response.read()
+        if hasattr(response, "read"):
+            try:
+                # since users can call deserialize_from_http_generics by themselves
+                # we want to make sure our new responses are read before we try to
+                # deserialize. Only read sync responses since we're in a sync function
+                if not inspect.iscoroutinefunction(response.read):
+                    response.read()
+            except AttributeError:
+                # raises an AttributeError in 2.7 bc inspect.iscoroutinefunction was added in 3.5
+                # Entering here means it's 2.7 and that the response has a read method, so we read
+                # bc it will be sync.
+                response.read()
         return cls.deserialize_from_text(response.text(encoding), mime_type, response=response)
 
     def on_request(self, request):