Update data_preprocessing.py

data_preprocessing.py

@@ -20,6 +20,6 @@ def preprocess_csv(data):
 
   # Preprocess the data (replace with your specific logic)
   # Example: Combine relevant columns into a single string
-  text = " ".join(df[col].tolist() for col in df.columns)
+  text = " ".join(word for col in df.columns for word in df[col].tolist())
 
   return text