Text Editor (with Tk)

# workingtexteditor.py
import sys
import textwrap

from tkinter import *

import tkinter.filedialog as dialog
import tkinter.scrolledtext as scrollbar

root = Tk()

# Define the 'Save' function
def save(root, text):
    data = text.get('0.0', END)
    filename = dialog.asksaveasfilename(
        parent = root,
        # Give several different types of files to save as
        # that the editor can handle
        filetypes = [('Text Files', '*.txt'), ('Python Files', '*.py', '*.pyc')],
        title = 'Save as...')
    writer = open(filename, 'w')
    writer.write(data)
    writer.close()

# Define the 'Open' function
def open(root, text):
    data = text.read('0.0', END)
    filename = dialog.askopenfilename(
        parent = root,
        # Give several different types of files to open that
        # the editor can handle
        filetypes = [('Text Files', '*.txt'),
                     ('Python Files', '*.py'),
                     ('All Files', '*.*')],
        title = 'Open...')
    writer = open(filename, 'w+')
    writer.write(data)
    writer.close()

# Define the 'Exit' function
def quit(root):
    root.destroy()

# Define other functions for the other menus
def cut(root):
    cut()

def copy(root):
    copy()

def paste(root):
    paste()

def about(root):
    about()

window = Tk()

# Specify a scrollbar
def scrollbar(root):
    tkinter.scrolledtext()

# Make the text editor automatically wrap text to default length
def wrap(root):
    textwrap.TextWrapper()
    wrapper = TextWrapper()
    wrapper.width(70)

# Make the actual GUI text editor window
window = Tk()
text = Text(window)
text.pack()

# Create a menu
menubar = Menu(window)
filemenu = Menu(menubar)
filemenu.add_command(label = 'Open', command = lambda : open(window, 'w+'))
filemenu.add_command(label = 'Save', command = lambda : save(window, text))
filemenu.add_command(label = 'Exit', command = lambda : quit(window))
menubar.add_cascade(label = 'File', menu = filemenu)

# Create another pulldown menu
editmenu = Menu(menubar, tearoff = 0)
editmenu.add_command(label = 'Cut', command = lambda : cut(window, text))
editmenu.add_command(label = 'Copy', command = lambda : copy(text))
editmenu.add_command(label = 'Paste', command = lambda : paste(window, text))
menubar.add_cascade(label = 'Edit', menu = editmenu)

# Yet another
helpmenu = Menu(menubar, tearoff = 0)
helpmenu.add_command(label = 'About', command = lambda : about(window, text))
menubar.add_cascade(label = 'Help', menu = helpmenu)

window.config(menu = menubar)

window.mainloop()