Text_app5.py

import tkinter
import tkinter.scrolledtext
class Application(tkinter.Frame):
    def __init__ (self,master):
        tkinter.Frame.__init__(self,master)
        self.pack()
        self.CreateWidgets()
    def CreateWidgets(self):
        self.textbox1=tkinter.scrolledtext.ScrolledText()
        self.textbox1.pack()
        self.button1=tkinter.Button()
        self.button1["command"]=self.button1_click
        self.button1["text"]="click"
        self.button1.pack()

        self.button2=tkinter.Button()
        self.button2["command"]=self.button1_save
        self.button2["text"]="save"
        self.button2.pack()

        self.button3=tkinter.Button()
        self.button3["command"]=self.button1_load
        self.button3["text"]="load"
        self.button3.pack()

        
    def button1_click(self):
        text=self.textbox1.get(0.0,tkinter.END)
        print(text.upper())
        print(text.lower())
        print(text.title())

    def button1_save(self):
        text=self.textbox1.get(0.0,tkinter.END)
        f=open("quote.txt","w")
        f.write(text)
        f.close()
        
    def button1_load(self):
        f=open("quote.txt","r")
        text=f.read()
        self.textbox1.delete(0.0,tkinter.END)
        self.textbox1.insert(tkinter.END,text)
        f.close
        
    
root=tkinter.Tk()
root.title("Elvira's Notepad")
app=Application(master=root)
app.mainloop()
root.destroy()