How to Create a Software using Python

Let’s make a simple software of our own using Python. We will be making a simple calculator software. Once you get the basics, its no time for to stop. Work on interesting ideas and create a software on your own.

To interact with the users you need an Interface to communicate, i.e. a Graphical User Interface. There are many modules in the python which you can import and code your GUI. Tkinter is the built-in GUI for the python, so we will be using Tkinter here.

from tkinter import *

#refers to class in Tkinter module
top = Tk()

#Label is the method to print a text in
L1 = Label(top, text="HI")
L1.pack( side = LEFT)

#Entry method to create a blank entry
E1 = Entry(top, bd =5)
E1.pack(side = RIGHT)

#Button method to create a button
B=Button(top, text ="Hello",)
B.pack()
top.mainloop()

When you run the above piece of code, you will get the output as shown below. Upon this code, we will built our software.

After entering 2 numbers and specifying the operation in between them, the answer has to be printed or displayed in the answer entry.

The final code will be:

from tkinter import *

def proces():
    number1=Entry.get(E1)
    number2=Entry.get(E2)
    operator=Entry.get(E3)
    number1=int(number1)
    number2=int(number2)
    if operator =="+":
        answer=number1+number2
    if operator =="-":
        answer=number1-number2
    if operator=="*":
        answer=number1*number2
    if operator=="/":
        answer=number1/number2
    Entry.insert(E4,0,answer)
    print(answer)

#refers to class in Tkinter module
top = Tk()

L1 = Label(top, text="My calculator",).grid(row=0,column=1)
L2 = Label(top, text="Number 1",).grid(row=1,column=0)
L3 = Label(top, text="Number 2",).grid(row=2,column=0)
L4 = Label(top, text="Operator",).grid(row=3,column=0)
L4 = Label(top, text="Answer",).grid(row=4,column=0)
E1 = Entry(top, bd =5)
E1.grid(row=1,column=1)
E2 = Entry(top, bd =5)
E2.grid(row=2,column=1)
E3 = Entry(top, bd =5)
E3.grid(row=3,column=1)
E4 = Entry(top, bd =5)
E4.grid(row=4,column=1)
B=Button(top, text ="Submit", command = proces).grid(row=5,column=1,)

top.mainloop()

Outputs: