simple text editor

main.py

from tkinter import *
from tkinter.filedialog import *
master = Tk()

tf = Text(master, bg="white", bd=0)
tf.pack(fill=BOTH, expand=1)

def hello():
    print(tf.get("1.0", END))
    print("END")
def openFile():
    fileName= askopenfilename(parent=master)
    file = open(fileName,"r")
    text = file.read()
    tf.delete("1.0",END)
    tf.insert("1.0",text)

def saveFile():
    fileName= asksaveasfilename(parent=master)
    text = tf.get("1.0", END)
    file = open(fileName,"w")
    file.write(text)
    file.close
menu = Menu(master)
filemenu = Menu(menu, tearoff=0)
filemenu.add_command(label="Open", command=openFile)
filemenu.add_command(label="Save", command=saveFile)
filemenu.add_separator()
filemenu.add_command(label="Exit", command=master.quit)
menu.add_cascade(label="File", menu=filemenu)
master['menu'] = menu

mainloop()