app.py

import gradio as gr
import pandas as pd

def greet(name):
  df = pd.read_csv('finaloutput_recommender2.csv')
  a = -1 
  for i in range(len(df)):
      if(df['customer'].iloc[i] == int(name)) :
          a = df['most_likely to buy'].iloc[i]
          return a
  return a        

iface = gr.Interface(fn=greet, inputs="number", outputs="text")
iface.launch()