Update app.py

app.py

@@ -230,8 +230,7 @@ import uuid
 # df.dtypes
 {new_line.join(map(lambda x: '# '+x, str(df_check.dtypes).split(new_line)))}
 
-{"\n".join(["# "+line for line in prompt.strip().split("\n")])}
-```
+{'\n'.join(['# '+line for line in prompt.strip().split('\n')])}
 """
                 query = f"""I have a pandas dataframe data of PM2.5 and PM10.
                 * The columns are 'Timestamp', 'station', 'PM2.5', 'PM10', 'address', 'city', 'latitude', 'longitude',and 'state'.