import tkinter as tk
from tkinter.constants import *

COUNT = 10

def get_values(widget, table):
    
	for k in range(COUNT):
            a = "%d.0" % (k + 2)
            v = widget.get(a,a+'lineend')
            if not v:
                break
            print ('a: %s, v: %s' % (a, v))
            table[k]=float(v)
 
# ----- Programme principale ----
if __name__ == '__main__':
    table = [0.0] * COUNT

    main = tk.Tk()
    main.title ("Calcul des niveaux d’énergies")
    text = tk.Text(main)
    text.insert(INSERT,"Rentrer les valeurs des paramètres")
    text.pack()
 
    tk.Button(main, text='Quitter',command=main.quit).pack()
    tk.Button(main, text="Acquisition des paramètres",command=lambda: get_values(text, table)).pack()
  
    tk.mainloop()
    print ('table:\n%s' % '\n'.join(str(f) for f in table))