new_contents: 
  import  pandas as pd
  import numpy as np
  import os
  import tensorflow as tf
  import  copy
  def pre():
      df = pd.DataFrame.from_csv(os.getcwd() + "/../friends.csv")
      print(len(df))
      X = list(df['utterance'])
      Y = copy.deepcopy(X)
      X =X[:-1]
      Y = Y[1:]
  
      #print(len(X))
      #print(len(Y))
      return (X, Y)
  def main():
      (X,Y) =pre()
  
  main()
  
subject: move code into src folder