Make Notepad using Tkinter

In this tutorial, we will learn how to build an easy notepad using Python by using Tkinter. The notepad GUI comprises different options like file and edit. All the functions, such as saving the file, opening the document, editing it, and copying and pasting, are possible.

Python, 3, and Tkinter must be already installed on your system to create the notepad. It is possible to download the appropriate Python package in accordance with your system's requirements. After successfully installing Python, you must download and install Tkinter (a program that is Python's GUI application).

Command to install Tkinter:

We can use the following command to install Tkinter:

Steps to Make Notepad:

In this section, we will follow the given steps for creating the Notepad using Tkinter:

Step 1: Import the required module.

import tkinter as TK
import os
from tkinter import *

# For getting the space above for message
from tkinter.messagebox import *

# for getting the dialog box to open when required
from tkinter.filedialog import *

The messagebox is used to write messages in the white space known as notepad. The filedialog is used to create this dialog to display when you open the file from any location on your computer or save the file in the specified location or position.

Step 2: Add menu.

def __init__(self,**kwargs):
		# Here, we will add the controls such as widgets
		self.__thisTextArea.grid(sticky = N + E + S + W)
		
		# For opening the new file
		self.__thisFileMenu.add_command(label = "New FIle",
										command = self.__newFile1)
		
		# For opening the already existing file from the menu
		self.__thisFileMenu.add_command(label = "Open File",
										command = self.__openFile1)
		
		# For saving the current working file
		self.__thisFileMenu.add_command(label = "Save File",
										command = self.__saveFile1)

		# For creating the line in the dialog Box	
		self.__thisFileMenu.add_separator()										
		self.__thisFileMenu.add_command(label = "Exit File",
										command=self.__quitApplication1)
		self.__thisMenuBar.add_cascade(label = "File Menu",
									menu = self.__thisFileMenu)	
		
		# for giving the feature of cutting in Files
		self.__thisEditMenu.add_command(label = "Cut in File",
										command = self.__cut1)			
	
		# For giving the feature of copying in file
		self.__thisEditMenu.add_command(label = "Copy in File",
										command = self.__copy1)		
		
		# for giving the feature of pasting in file
		self.__thisEditMenu.add_command(label = "Paste in File",
										command = self.__paste1)		
		
		# for giving the feature of editing in file
		self.__thisMenuBar.add_cascade(label = "Edit in File",
									menu = self.__thisEditMenu)	
		
		# FOr creating the feature of description of the notepad File
		self.__thisHelpMenu.add_command(label = "About Notepad File",
										command = self.__showAbout1)
		self.__thisMenuBar.add_cascade(label = "Help in File",
									menu = self.__thisHelpMenu)

		self.__root.config(menu = self.__thisMenuBar)

		self.__thisScrollBar.pack(side = RIGHT,fill=Y)				
		
		# Here, the scroll-bar will get adjusted automatically according to the content of the file
		self.__thisScrollBar.config(command = self.__thisTextArea.yview)	
		self.__thisTextArea.config(yscrollcommand = self.__thisScrollBar.set)

This code will create a menu within the window of our notepad, and include things such as copy, paste, save, and so on.

Step 3: Add the functionality.

	def __quitApplication1(self):
		self.__root.destroy()
		# exit()

	def __showAbout1(self):
		showinfo("Notepad File","Javatpoint")

	def __openFile1(self):
		
		self.__file = askopenfilename(defaultextension = ".txt",
									filetypes = [("All Files","*.*"),
										("Text Documents","*.txt")])

		if self.__file == "":
			
			# If there is no file to open
			self.__file = None
		else:
			
			# For trying to open the file set the window title
			self.__root.title(os.path.basename(self.__file) + " - Notepad File")
			self.__thisTextArea.delete(1.0, END)

			file = open(self.__file, "r")

			self.__thisTextArea.insert(1.0, file.read())

			file.close()

		
	def __newFile1(self):
		self.__root.title("Untitled- Notepad File")
		self.__file = None
		self.__thisTextArea.delete(1.0, END)

	def __saveFile1(self):

		if self.__file == None:
			# For Saving as new file
			self.__file = asksaveasfilename(initialfile = 'UntitledFile.txt',
											defaultextension = ".txt",
											filetypes = [("All Files","*.*"),
												("Text Documents", "*.txt")])

			if self.__file == "":
				self.__file = None
			else:
				
				# For trying to  save the file
				file = open(self.__file,"w")
				file.write(self.__thisTextArea.get(1.0, END))
				file.close()
				
				# For changing the window title
				self.__root.title(os.path.basename(self.__file) + " - Notepad File")
				
			
		else:
			file = open(self.__file,"w")
			file.write(self.__thisTextArea.get(1.0, END))
			file.close()

	def __cut1(self):
		self.__thisTextArea.event_generate("<<Cut in File>>")

	def __copy1(self):
		self.__thisTextArea.event_generate("<<Copy in File>>")

	def __paste1(self):
		self.__thisTextArea.event_generate("<<Paste in File>>")

	def run1(self):

		# For running the main application
		self.__root.mainloop()In this, we have included all the functions needed in the notepad. The user can also add additional functions to this, for example, the size of the font and bold, font colour underlined, bold, etc.

Main Code:

import tkinter as TK
import os
from tkinter import *
from tkinter.messagebox import *
from tkinter.filedialog import *

class Notepad_file:

	__root = Tk()

	# default window width and height
	__thisWidth = 350
	__thisHeight = 350
	__thisTextArea = Text(__root)
	__thisMenuBar = Menu(__root)
	__thisFileMenu = Menu(__thisMenuBar, tearoff = 0)
	__thisEditMenu = Menu(__thisMenuBar, tearoff = 0)
	__thisHelpMenu = Menu(__thisMenuBar, tearoff = 0)
	
	# For adding the scrollbar
	__thisScrollBar = Scrollbar(__thisTextArea)	
	__file = None

	def __init__(self, **kwargs):

		# Here, we will Set the icon
		try:
				self.__root.wm_iconbitmap("Notepad.ico")
		except:
				pass

# here, we will set the window size, the default window size is 300 x 300

		try:
			self.__thisWidth = kwargs['width']
		except KeyError:
			pass

		try:
			self.__thisHeight = kwargs['height']
		except KeyError:
			pass

		# here, we will set the window text
		self.__root.title("Untitled- Notepad File")

		# here, we will set the center the window
		screenWidth = self.__root.winfo_screenwidth()
		screenHeight = self.__root.winfo_screenheight()
	
		# For left-align
		left = (screenWidth / 2) - (self.__thisWidth / 2)
		
		# For right-align
		top = (screenHeight / 2) - (self.__thisHeight /2)
		
		# For top and bottom
		self.__root.geometry('%d x %d + %d + %d' % (self.__thisWidth,
											self.__thisHeight,
											left, top))

	# Here, we are making the text-area auto resizable
		self.__root.grid_rowconfigure(0, weight = 1)
		self.__root.grid_columnconfigure(0, weight = 1)

		# Here, we will add the controls such as widgets
		self.__thisTextArea.grid(sticky = N + E + S + W)
		
		# For opening the new file
		self.__thisFileMenu.add_command(label = "New FIle",
										command = self.__newFile1)
		
		# For opening the already existing file from the menu
		self.__thisFileMenu.add_command(label = "Open File",
										command = self.__openFile1)
		
		# For saving the current working file
		self.__thisFileMenu.add_command(label = "Save File",
										command = self.__saveFile1)

		# For creating the line in the dialog Box	
		self.__thisFileMenu.add_separator()										
		self.__thisFileMenu.add_command(label = "Exit File",
										command=self.__quitApplication1)
		self.__thisMenuBar.add_cascade(label = "File Menu",
									menu = self.__thisFileMenu)	
		
		# for giving the feature of cutting in Files
		self.__thisEditMenu.add_command(label = "Cut in File",
										command = self.__cut1)			
	
		# For giving the feature of copying in file
		self.__thisEditMenu.add_command(label = "Copy in File",
										command = self.__copy1)		
		
		# for giving the feature of pasting in file
		self.__thisEditMenu.add_command(label = "Paste in File",
										command = self.__paste1)		
		
		# for giving the feature of editing in file
		self.__thisMenuBar.add_cascade(label = "Edit in File",
									menu = self.__thisEditMenu)	
		
		# FOr creating the feature of description of the notepad File
		self.__thisHelpMenu.add_command(label = "About Notepad File",
										command = self.__showAbout1)
		self.__thisMenuBar.add_cascade(label = "Help in File",
									menu = self.__thisHelpMenu)

		self.__root.config(menu = self.__thisMenuBar)

		self.__thisScrollBar.pack(side = RIGHT,fill=Y)				
# Here, the scroll-bar will get adjusted automatically according to the content 
# of the file
		self.__thisScrollBar.config(command = self.__thisTextArea.yview)	
		self.__thisTextArea.config(yscrollcommand = self.__thisScrollBar.set)
	
		
	def __quitApplication1(self):
		self.__root.destroy()
		# exit()

	def __showAbout1(self):
		showinfo("Notepad File","Javatpoint")

	def __openFile1(self):
		
		self.__file = askopenfilename(defaultextension = ".txt",
									filetypes = [("All Files","*.*"),
										("Text Documents","*.txt")])

		if self.__file == "":
			
			# If there is no file to open
			self.__file = None
		else:
			
			# For trying to open the file set the window title
			self.__root.title(os.path.basename(self.__file) + " - Notepad File")
			self.__thisTextArea.delete(1.0, END)

			file = open(self.__file, "r")

			self.__thisTextArea.insert(1.0, file.read())

			file.close()

		
	def __newFile1(self):
		self.__root.title("Untitled- Notepad File")
		self.__file = None
		self.__thisTextArea.delete(1.0, END)

	def __saveFile1(self):

		if self.__file == None:
			# For Saving as new file
			self.__file = asksaveasfilename(initialfile = 'UntitledFile.txt',
											defaultextension = ".txt",
											filetypes = [("All Files","*.*"),
												("Text Documents", "*.txt")])

			if self.__file == "":
				self.__file = None
			else:
				
				# For trying to  save the file
				file = open(self.__file,"w")
				file.write(self.__thisTextArea.get(1.0, END))
				file.close()
				
				# For changing the window title
				self.__root.title(os.path.basename(self.__file) + " - Notepad File")
				
			
		else:
			file = open(self.__file,"w")
			file.write(self.__thisTextArea.get(1.0, END))
			file.close()

	def __cut1(self):
		self.__thisTextArea.event_generate("<<Cut in File>>")

	def __copy1(self):
		self.__thisTextArea.event_generate("<<Copy in File>>")

	def __paste1(self):
		self.__thisTextArea.event_generate("<<Paste in File>>")

	def run1(self):

		# For running the main application
		self.__root.mainloop()




# For running the main application
notepad1 = Notepad_file(width = 650, height = 450)
notepad1.run1()

Output:

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Make Notepad using Tkinter

Command to install Tkinter:

Steps to Make Notepad:

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Make Notepad using Tkinter

Command to install Tkinter:

Steps to Make Notepad:

Latest Courses

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