import tkinter as tk
root=tk.Tk()
canvas1=tk.Canvas(root, width=400, heigh=300)
canvas1.pack()
entry1=tk.Entry(root)
canvas1.create_window(200, 140, window=entry1)

def NGCsearch():
    x1 = entry1.get()
    f = open("/home/pi/Documents/FICHIERS NGC/NGC.csv", "rt")
    for x in f:
        if x1 in x:
            label1=tk.Label(root, text= x)
            canvas1.create_window(200,230, window=label1)
button1= tk.Button(text='recherche', command=NGCsearch)
canvas1.create_window(200, 180, window=button1)

root.mainloop()