Update app.py

app.py

@@ -5,7 +5,7 @@ import torch
 from transformers.models.bert import BertTokenizer, BertForSequenceClassification
 path='/home/user/app'
 vocab='vocab.txt'
-tokenizer = BertTokenizer.from_pretrained(os.join(path,vocab))
+tokenizer = BertTokenizer.from_pretrained(os.path.join(path,vocab))
 model = BertForSequenceClassification.from_pretrained(path)
 model.eval()