Update app.py

app.py

@@ -68,6 +68,6 @@ if uploaded_file is not None:
     summary1=summary1.merge(trends, how='left',on='CustomerID')
     summary1=summary1.merge(trends1, how='left',on='CustomerID')
     summary1.drop('probability_alive',axis=1,inplace=True)
-    summary1.rename(columns={'Quantity':'Average Quantity','TotalSales':'Average Sales Value'})
+    summary1.rename(columns={'Quantity':'Average Quantity','TotalSales':'Average Sales Value'},inplace=True)
     out=summary1.to_csv().encode('utf-8')
     st.download_button(label='DOWNLOAD RESULT',data=out, file_name='CLV_OUTPUT.csv',mime='text/csv')