Merge pull request #54 from edx/will/silence-noisy-error

Change error logging for an error we're suppressing to debug logging

ease/model_creator.py

@@ -101,9 +101,10 @@ def get_cv_error(clf,feats,scores):
         results['mae']=err
         results['kappa']=kappa
         results['success']=True
-    except ValueError:
-        #If this is hit, everything is fine.  It is hard to explain why the error occurs, but it isn't a big deal.
-        log.exception("Not enough classes (0,1,etc) in each cross validation fold.")
+    except ValueError as ex:
+        # If this is hit, everything is fine.  It is hard to explain why the error occurs, but it isn't a big deal.
+        msg = u"Not enough classes (0,1,etc) in each cross validation fold: {ex}".format(ex=ex)
+        log.debug(msg)
     except:
         log.exception("Error getting cv error estimates.")