notepad python

install python
open idle
make a new file
type this code:

from tkinter import *

def main():
root = Tk()
gui = Window(root)
gui.root.mainloop()
return None

class Window:

def __init__(self, root):
self.root = root
self.root.geometry('650x490')
self.root.title("TKinter Notepad")


# Create textspace
self.textspace = Text(self.root)
self.textspace.grid(row=0, column = 0)

# Create open and save buttons
Button(self.root, text = "Save", command = self.savefile).grid(row=0, column = 1)
Button(self.root, text = "Open", command = self.openfile).grid(row=0, column = 2)

pass

def savefile(self):
savegui = Tk()
savegui.geometry('560x50')
filecontents = self.textspace.get(0.0, END)

def writefile():
with open(file_name.get() + '.txt', 'w+') as file:
file.write(filecontents)
file.close()
savegui.destroy()
return None

Label(savegui, text = "File Name").grid(row=0, column = 0)
file_name = Entry(savegui, width = 40)
file_name.grid(row=0, column=1)

Button(savegui, text = "Save", command = writefile).grid(row=0, column = 2)



return None

def openfile(self):
opengui = Tk()
opengui.geometry('560x50')

def opennew():
try:
with open(file_name.get(), "r") as file:
self.textspace.delete(0.0, END)
self.textspace.insert(0.0, file.read())
file.close()
opengui.destroy()
except FileNotFoundError:
file_name.delete(0.0, END)
file_name.insert(0.0, "FILE NOT FOUND. TRY ANOTHER")

return None

Label(opengui, text = "File Name").grid(row=0, column = 0)
file_name = Entry(opengui, width = 40)
file_name.grid(row=0, column=1)

Button(opengui, text = "Open", command = opennew).grid(row=0, column = 2)

return None


pass

main()