text: from Tkinter import *
  import Step1_Data_Cleaning
  import Step2_Determine_Benchmarks_for_Wells
  import Step3_Discrete_Linear_Fit
  
  def close_window():
      window.destroy()
  def run_step_1():
      Step1_Data_Cleaning.main()
  def run_step_2():
      Step2_Determine_Benchmarks_for_Wells.main()
  def run_step_3():
      Step3_Discrete_Linear_Fit.main()
  
  
  
  window = Tk()
  
  # while(True):
  print("Welcome to Groundwater Level Correction Program Command Window\n\n")
  window.title("Groundwater Correction Program")
  window.configure(width = 1000, height = 500, background = "black")
  ##photo = PhotoImage(file="well_image.gif")
  ##Label(window,image = photo, bg = "black").grid(row = 0, column = 0)
  
  Label(window, text = "Welcome to Groundwater Level Correction Program", bg ="black",
       fg = "white", font = "none 20 bold").grid(row = 0, column = 0)
  Label(window, text = "\nPlease click which step you want to run:\n", bg = 'black', fg = "white", font = "none 15 bold").grid(row = 1, column = 0)
  
  Button(window, text = "Run Step 1", font = "bold", width = 10, height = 5, command = run_step_1).grid(row = 7, column = 0, sticky = W)
  Button(window, text = "Run Step 2", font = "bold", width = 10, height = 5, command = run_step_2).grid(row = 7, column = 0)
  Button(window, text = "Run Step 3", font = "bold", width = 10, height = 5, command = run_step_3).grid(row = 7, column = 0, sticky = E)
  
  
  Label(window, text="\n\nClick to exit program:\n",bg = "black",fg ="white", font = "none 12 bold").grid(row= 8, column = 0)
  Button(window, text = "Exit", width = 14, command = close_window).grid(row=9, column = 0)
  window.mainloop()
  window.mainloop()