Update api.py

api.py

@@ -648,7 +648,7 @@ Try to be about the same length as the examples if possible."""
     evaluated_problematics = evaluation(generated_descriptions)
 
     final_output = []
-    for i in len(generated_descriptions):
+    for i in range(len(generated_descriptions)):
         problem_description = generated_descriptions[i]
         problematic = evaluated_problematics[i].problematic
         score = evaluated_problematics[i].score