Simple calculator for Android in python

Calculator using  python3 for Android 

Calculator look like ......

Hallo guys ...

First install" pydroid3" app on your smartphone phone 

Install library given  in below source code eg.tkinter , webbrowser , time , simpledialoge and messagebox.

2.Go setting of your pydroid3 >>search for pip option >>select pip option and write package name and press install button for installing package

3.Paste below source code after installing all package and run it...

###### start #####

from tkinter import *

from tkinter import messagebox

from tkinter import simpledialog

import webbrowser

import time 

def btnclick(number):

  global val

  val=val + str(number)

  data.set(val)

def btnclear():

  global val

  val=" "

  data.set(" ")

def btnequal():

  global val

  sub=str(eval(val))

  data.set(sub)

def haggu():

  webbrowser.open("https://wing2rah.blogspot.com/?m=1")

  time.sleep(3)

  messagebox.showinfo("FROM RAHUL...."," THANK U...hope u enjoy it..")

def cancel():

    ansx=messagebox.askyesno("rahul","do you want to exit")

    if ansx:

        rahul.destroy()

def info():

     messagebox.showinfo("rahul","this is rahul's calculator")

    

     ans=messagebox.askyesno("rahul","do u want more ?")

     if ans:

         naam=simpledialog.askstring("rahul","what is your name?")

         messagebox.showinfo("rahul",naam + "   please go to my blog")

         messagebox.showinfo("rahul","press rahul to go to my blog")

rahul=Tk()

rahul.title("welcome to calculator")

rahul.geometry("30x15+50+30")

rahul["bg"]="#98FF98"

val=" "

data=StringVar()

display=Entry(rahul,textvariable=data , justify="center", bg="cyan",bd=10,font=("windsong",16))

display.grid(row=0 , columnspan=3)

btn7=Button(rahul,text="7",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(7),activebackground="#C2DFFF")

btn7.grid(row=1, column=0)

btn8=Button(rahul,text="8",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(8),activebackground="#F433FF")

btn8.grid(row=1, column=1)

btn9=Button(rahul,text="9",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(9),activebackground="#6960EC")

btn9.grid(row=1, column=2)

btn4=Button(rahul,text="4",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(4),activebackground="#E42217")

btn4.grid(row=2, column=0)

btn5=Button(rahul,text="5",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(5),activebackground="#E238EC")

btn5.grid(row=2, column=1)

btn6=Button(rahul,text="6",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(6),activebackground="#A74AC7")

btn6.grid(row=2, column=2)

btn1=Button(rahul,text="1",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(1),activebackground="#93FFE8")

btn1.grid(row=3, column=0)

btn2=Button(rahul,text="2",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(2),activebackground="#52D017")

btn2.grid(row=3, column=1)

btn3=Button(rahul,text="3",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(3),activebackground="#F63C8A")

btn3.grid(row=3, column=2)

btnzero=Button(rahul,text="0",bg="light yellow",font=("ariel",10,"bold"),bd=8,height=2,width=3,command=lambda:btnclick(0),activebackground="#C12267")

btnzero.grid(row=4 , column=1)

btnmin=Button(rahul,text="-",bg="magenta",font=("ariel",10,"bold"),bd=15,height=2,width=3,command=lambda:btnclick('-'),activebackground="#E4287C")

btnmin.grid(row=5 , column=1)

btnsum=Button(rahul,text="+",bg="magenta",font=("ariel",10,"bold"),bd=15,height=2,width=3,command=lambda:btnclick('+'),activebackground="#FD0017")

btnsum.grid(row=6 , column=0)

btneql=Button(rahul,text="EQUAL",bg="light green",font=("ariel",10,"bold"),bd=20,height=3,width=5,command=btnequal,activebackground="#FCDFFF")

btneql.grid(row=6 , column=1)

btnmul=Button(rahul,text="*",bg="magenta",font=("ariel",10,"bold"),bd=15,height=2,width=3,command=lambda:btnclick('*'),activebackground="#48CCCD")

btnmul.grid(row=6 , column=2)

btndiv=Button(rahul,text="÷",bg="magenta",font=("ariel",10,"bold"),bd=15,height=2,width=3,command=lambda:btnclick('/'),activebackground="#A74AC7")

btndiv.grid(row=7 , column=1)

btnp=Button(rahul,text="Rahul...",font=("ariel",10,"bold"),bg="#FFFF00",fg="blue",activebackground="#0020C2",borderwidth=5,bd=5,width=15,height=1,command=haggu)

btnp.grid(row=11, column=1)

btnc=Button(rahul,text="clear",fg="purple",bg="cyan",font=("ariel",12,"bold"),bd=25,height=3,width=5,command=btnclear,activebackground="red")

btnc.grid(row=10, column=1)

btni=Button(rahul,text="?",fg="purple",bg="yellow",height=1,width=1,bd=15,activebackground="cyan",command=info)

btni.grid(row=10,column=0)

btnx=Button(rahul,text="X",fg="purple",bg="yellow",height=1,width=1,bd=15,activebackground="cyan",command=cancel)

btnx.grid(row=10,column=2)

rahul.mainloop()

####END####

Image of source are ..

 

          THANKS.