Merge pull request #25719 from edx/sarina/demox-code-grader

Fix demoX grader print statements

common/test/data/manual-testing-complete/problem/2f7da8477d8748f0aad0f7fc2134b84f.xml

@@ -19,7 +19,7 @@ for response in submission[0]:
   if response[0] == 'ac':
       for node in response[1:]:
           ac_values = node['NodeA']
-print "the ac analysis value:", ac_values
+print("the ac analysis value:", ac_values)
 if ac_values == None:
   correct = ['incorrect']
 elif ac_values[0][1] < ac_values[1][1]:

common/test/data/manual-testing-complete/problem/c2ee6e8917fe4c97ac99d7b616ff0b89.xml

@@ -73,7 +73,7 @@ while abs(balance) > .02:
 
 # When the while loop terminates, we know we have 
 #  our answer!
-print "Lowest Payment:", round(payment, 2)
+print("Lowest Payment:", round(payment, 2))
 </answer_display>
       <grader_payload>
 {"grader": "ps02/bisect/grade_bisect.py"}