Update app.py

app.py

@@ -41,7 +41,7 @@ def get_text_file(text_docs):
 def get_csv_file(csv_docs):
     temp_dir = tempfile.TemporaryDirectory()
     temp_filepath = os.path.join(temp_dir.name, csv_docs.name)
-    with open(temp_filepath, "wb") as f
+    with open(temp_filepath, "wb") as f:
         f.write(csv_docs.getvalue())
     csv_loader = CSVLoader(temp_filepath)
     csv_doc = csv_loader.load()