Better error message

2012-03-10 22:42:32 -05:00
parent 837b9c9075
commit e8c7e5521b
1 changed files with 4 additions and 1 deletions
--- a/courseware/capa/responsetypes.py
+++ b/courseware/capa/responsetypes.py
@@ -47,7 +47,10 @@ class numericalresponse(object):
    def grade(self, student_answers):
        ''' Display HTML for a numeric response '''
        student_answer = student_answers[self.answer_id]
-        correct = compare_with_tolerance (evaluator(dict(),dict(),student_answer), self.correct_answer, self.tolerance)
+        try:
+            correct = compare_with_tolerance (evaluator(dict(),dict(),student_answer), self.correct_answer, self.tolerance)
+        except:
+            raise StudentInputError('Invalid input -- please use a number only')

        if correct:
            return {self.answer_id:'correct'}