small nltk fix

handler.py

@@ -138,13 +138,13 @@ class Transcript:
         teacher_dict = {}
         student_dict = {}
         uptake_teacher_dict = {}
-        stopwords = stopwords.words('english')
+        stop_words = stopwords.words('english')
         # stopwords = nltk.corpus.stopwords.word('english')
         # print("stopwords: ", stopwords)
         for utt in self.utterances:
             words = (utt.get_clean_text(remove_punct=True)).split(' ')
             for word in words:
-                if word in stopwords: continue
+                if word in stop_words: continue
                 if utt.role == 'teacher':
                     if word not in teacher_dict:
                         teacher_dict[word] = 0