Update app.py

app.py

@@ -5,7 +5,7 @@ from transformers import pipeline
 from transformers.pipelines.token_classification import TokenClassificationPipeline
 import py_vncorenlp
 
-os.sys('!pwd')
+os.system('!pwd')
 os.mkdir('/vncorenlp')
 py_vncorenlp.download_model(save_dir='/vncorenlp')
 rdrsegmenter = py_vncorenlp.VnCoreNLP(annotators=["wseg"], save_dir='/vncorenlp')