Notepad using Python tkinter Module

Hey Wassup Python Programmer. Here i have share you the code of Notepad.So Before Running this program Make sure you Have install tkinter module Using Command


Copy The code correctly Make Sure that you havent make any indenation or syntax error

	import tkinter
	import os
	from tkinter import *
	from tkinter.messagebox import *
	from tkinter.filedialog import *
	class Notepad:
	__root = Tk()
	# default window width and height
	__thisWidth = 300
	__thisHeight = 300
	__thisTextArea = Text(__root)
	__thisMenuBar = Menu(__root)
	__thisFileMenu = Menu(__thisMenuBar, tearoff=0)
	__thisEditMenu = Menu(__thisMenuBar, tearoff=0)
	__thisHelpMenu = Menu(__thisMenuBar, tearoff=0)
	# To add scrollbar
	__thisScrollBar = Scrollbar(__thisTextArea)
	__file = None
	def __init__(self,**kwargs):
	# Set icon
	try:
	self.__root.wm_iconbitmap("Notepad.ico")
	except:
	pass
	# Set window size (the default is 300x300)
	try:
	self.__thisWidth = kwargs['width']
	except KeyError:
	pass
	try:
	self.__thisHeight = kwargs['height']
	except KeyError:
	pass
	# Set the window text
	self.__root.title("Untitled - Notepad")
	# Center the window
	screenWidth = self.__root.winfo_screenwidth()
	screenHeight = self.__root.winfo_screenheight()
	# For left-alling
	left = (screenWidth / 2) - (self.__thisWidth / 2)
	# For right-allign
	top = (screenHeight / 2) - (self.__thisHeight /2)
	# For top and bottom
	self.__root.geometry('%dx%d+%d+%d' % (self.__thisWidth,
	self.__thisHeight,
	left, top))
	# To make the textarea auto resizable
	self.__root.grid_rowconfigure(0, weight=1)
	self.__root.grid_columnconfigure(0, weight=1)
	# Add controls (widget)
	self.__thisTextArea.grid(sticky = N + E + S + W)
	# To open new file
	self.__thisFileMenu.add_command(label="New",
	command=self.__newFile)
	# To open a already existing file
	self.__thisFileMenu.add_command(label="Open",
	command=self.__openFile)
	# To save current file
	self.__thisFileMenu.add_command(label="Save",
	command=self.__saveFile)
	# To create a line in the dialog
	self.__thisFileMenu.add_separator()
	self.__thisFileMenu.add_command(label="Exit",
	command=self.__quitApplication)
	self.__thisMenuBar.add_cascade(label="File",
	menu=self.__thisFileMenu)
	# To give a feature of cut
	self.__thisEditMenu.add_command(label="Cut",
	command=self.__cut)
	# to give a feature of copy
	self.__thisEditMenu.add_command(label="Copy",
	command=self.__copy)
	# To give a feature of paste
	self.__thisEditMenu.add_command(label="Paste",
	command=self.__paste)
	# To give a feature of editing
	self.__thisMenuBar.add_cascade(label="Edit",
	menu=self.__thisEditMenu)
	# To create a feature of description of the notepad
	self.__thisHelpMenu.add_command(label="About Notepad",
	command=self.__showAbout)
	self.__thisMenuBar.add_cascade(label="Help",
	menu=self.__thisHelpMenu)
	self.__root.config(menu=self.__thisMenuBar)
	self.__thisScrollBar.pack(side=RIGHT,fill=Y)
	# Scrollbar will adjust automatically according to the content
	self.__thisScrollBar.config(command=self.__thisTextArea.yview)
	self.__thisTextArea.config(yscrollcommand=self.__thisScrollBar.set)
	def __quitApplication(self):
	self.__root.destroy()
	# exit()
	def __showAbout(self):
	showinfo("Notepad","Mrinal Verma")
	def __openFile(self):
	self.__file = askopenfilename(defaultextension=".txt",
	filetypes=[("All Files","*.*"),
	("Text Documents","*.txt")])
	if self.__file == "":
	# no file to open
	self.__file = None
	else:
	# Try to open the file
	# set the window title
	self.__root.title(os.path.basename(self.__file) + " - Notepad")
	self.__thisTextArea.delete(1.0,END)
	file = open(self.__file,"r")
	self.__thisTextArea.insert(1.0,file.read())
	file.close()
	def __newFile(self):
	self.__root.title("Untitled - Notepad")
	self.__file = None
	self.__thisTextArea.delete(1.0,END)
	def __saveFile(self):
	if self.__file == None:
	# Save as new file
	self.__file = asksaveasfilename(initialfile='Untitled.txt',
	defaultextension=".txt",
	filetypes=[("All Files","*.*"),
	("Text Documents","*.txt")])
	if self.__file == "":
	self.__file = None
	else:
	# Try to save the file
	file = open(self.__file,"w")
	file.write(self.__thisTextArea.get(1.0,END))
	file.close()
	# Change the window title
	self.__root.title(os.path.basename(self.__file) + " - Notepad")
	else:
	file = open(self.__file,"w")
	file.write(self.__thisTextArea.get(1.0,END))
	file.close()
	def __cut(self):
	self.__thisTextArea.event_generate("<<Cut>>")
	def __copy(self):
	self.__thisTextArea.event_generate("<<Copy>>")
	def __paste(self):
	self.__thisTextArea.event_generate("<<Paste>>")
	def run(self):
	# Run main application
	self.__root.mainloop()
	# Run main application
	notepad = Notepad(width=600,height=400)
	notepad.run()

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