Tkinter Button and Entry in Python

Hello friends how are you, today in this blog i will teach you what is Button and Entry, syntax of Button and Entry, how to create Button and Entry, how Button and Entry work in a very simple way.

Let's start

Button

• Button widget is used to provide different kinds of buttons in application.
• Syntax:
  

  btn = Button ( master, option1,option2, ... )
  

• Here master is parent window and option can be used as a key-value pairs.
• Examples of options are text,bg,image,height etc.

from tkinter import *
top = Tk()
#window dimension
top.geometry("300x150")
top['bg']="#51E1DC"
# creating button
btn = Button(top, text="Click Me").pack()
top.mainloop()
 

Output

Button with userdefined position

from tkinter import *
top = Tk()
#window dimension
top.geometry("300x150")
top['bg']="#51E1DC"
#here x is distance from left
#and y is distance from top
btn1 = Button(top, text="Click Me").place(x=50,y=30)
top.mainloop()

Output

Call Function on Button click

from tkinter import messagebox
from tkinter import *
top = Tk()
#window dimension
top.geometry("300x150")
top['bg']="#51E1DC"
#creating function
def myfun():
    messagebox.showinfo("Title","You clicked on button")
btn1 = Button(top, text="Click Me",command=myfun).pack()
top.mainloop()

Output

 Entry

• Entry is used to create single line textbox which is used to take accept a value from the user.
• Syntax:
  

  ent = Entry ( master, option1,option2, ... )
  

• Here master is parent window and option can be used as a key-value pairs.
• Examples of options are bg,font,width etc.

from tkinter import *
top = Tk()
#window dimension
top.geometry("300x150")
top['bg']="#51E1DC"
label = Label(top, text="First Number",).place(x=50,y=50)
#create text box
ent=Entry(top).place(x=150,y=50)
top.mainloop()
 

Output

Add two numbers

from tkinter import  messagebox
from tkinter import *
top = Tk()
#window dimension
top.geometry("300x180")
top['bg']="#51E1DC"
#defining function
def add():
    f=firstNum.get()
    s=secondNum.get()
    messagebox.showinfo("Sum",(f+s))
#declaring variables
firstNum=IntVar()
secondNum=IntVar()
#create labels
Label(top, text="First Number",width="13").place(x=50,y=50)
Label(top, text="Second Number",width="13").place(x=50,y=90)
#create text boxes
Entry(top,textvariable=firstNum).place(x=150,y=50)
Entry(top,textvariable=secondNum).place(x=150,y=90)
#create button
Button(top,text="Add",width="5",bg="orange",command=add).place(x=100,y=120)
top.mainloop()

Output

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