Added exc_info=True to log.warning

Changed log.exception to log.warning

cms/djangoapps/contentstore/views.py

@@ -454,7 +454,8 @@ def preview_dispatch(request, preview_id, location, dispatch=None):
         raise Http404
 
     except ProcessingError:
-        log.warning("Module raised an error while processing AJAX request")
+        log.warning("Module raised an error while processing AJAX request",
+                    exc_info=True)
         return HttpResponseBadRequest()
 
     except:

common/lib/xmodule/xmodule/capa_module.py

@@ -735,7 +735,8 @@ class CapaModule(CapaFields, XModule):
             self.set_state_from_lcp()
 
         except (StudentInputError, ResponseError, LoncapaProblemError) as inst:
-            log.exception("StudentInputError in capa_module:problem_check")
+            log.warning("StudentInputError in capa_module:problem_check",
+                        exc_info=True)
 
             # If the user is a staff member, include
             # the full exception, including traceback,

lms/djangoapps/courseware/module_render.py

@@ -451,7 +451,8 @@ def modx_dispatch(request, dispatch, location, course_id):
 
     # For XModule-specific errors, we respond with 400
     except ProcessingError:
-        log.exception("Module encountered an error while prcessing AJAX call")
+        log.warning("Module encountered an error while prcessing AJAX call",
+                    exc_info=True)
         return HttpResponseBadRequest()
 
     # If any other error occurred, re-raise it to trigger a 500 response