Tw_calc

Example Python program Tw_calc.py

Modules

• import sys
• from tkinter import *
• from tkinter import Frame
• from typing import List

Code

Python tkinter example

# Easy and simple way to use tkinter button widget
# Import tkinter (*)all modules
# No functions, only graphic

import sys
from tkinter import *
from tkinter import Frame
from typing import List

app = Tk()


floor_4 = Frame(app
                )
floor_4.pack()
app.title("TwCalc"
          )
no = IntVar()
# 
up_floor = Frame(app, bg="white", border=2, )
up_floor.pack(side=TOP)

#//////// an entry to display digits(input/output) in the top side of the window //////////

Digitprint = Entry(up_floor, textvariable=no, width=18 ,font=30,
                   bd=10 , fg="red" ,bg="yellow"
                   )
Digitprint.pack(side=TOP)
# ---------------------------------------------------------------------------------
# Tkinter button widget (we create button that displays 1,
# We speciy its position with .pack(side="left,top,right or bottom"),size(pady,padx),
# Color of the digit (bg="color"),color of the button(fg="color"),
# Font(font=('arial,broadway,britannic...)more about fonts:open notepad>Format>font
# All button have the same specification(arguments) in this code 
#-----------------------------------------------------------------------------------
button1 = Button(up_floor, padx=20, pady=5, text="1", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button1.pack(side=LEFT)
button2 = Button(up_floor, padx=20, pady=5, text="2", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button2.pack(side=LEFT)
button3 = Button(up_floor, padx=20, pady=5, text="3", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button3.pack(side=LEFT)

floor_3 = Frame(app)
floor_3.pack(side=TOP)


button4 = Button(floor_3, padx=20, pady=5, text="4", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button4.pack(side=LEFT)
button5 = Button(floor_3, padx=20, pady=5, text="5", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button5.pack(side=LEFT)
button6 = Button(floor_3, padx=20, pady=5, text="6", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button6.pack(side=LEFT)

floor_4 = Frame(app)
floor_4.pack(side=TOP)

button7 = Button(floor_4, padx=20, pady=5, text="7", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button7.pack(side=LEFT)
button8 = Button(floor_4, padx=20, pady=5, text="8", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button8.pack(side=LEFT)
button9 = Button(floor_4, padx=20, pady=5, text="9", fg="blue", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
button9.pack(side=LEFT)

floor_5 = Frame(app)
floor_5.pack(side=TOP)

button7 = Button(floor_5, padx=15, pady=5, text="-", fg="blue", bg="white",
                 bd=5,font=('Old English Text MT', 10,)
                 )
button7.pack(side=LEFT)
button8 = Button(floor_5, padx=30, pady=5, text="0", fg="blue", bg="white",
                 bd=5,font=('Old English Text MT', 10,)
                 )
button8.pack(side=LEFT)
button9 = Button(floor_5, padx=15, pady=5, text="+", fg="blue", bg="white",
                 bd=5,font=('Old English Text MT', 10,)
                 )
button9.pack(side=LEFT)

floor_7 = Frame(app)
floor_7.pack(side=TOP)

button13 = Button(floor_7, padx=20, pady=5, text="+", fg="blue", bg="white",
                  bd=5,font=('Old English Text MT', 10,)
                  )

button13.pack(side=LEFT)
button14 = Button(floor_7, padx=20, pady=5, text=".", fg="blue", bg="white",
                  bd=5,font=('Old English Text MT', 10,)
                  )

button14.pack(side=LEFT)
button15 = Button(floor_7, padx=20, pady=5, text="/", fg="blue", bg="white",
                  bd=5,font=('Old English Text MT', 10,)
                  )
button15.pack(side=LEFT)

floor_8 = Frame(app)
floor_8.pack(side=TOP)

# "Clear Button" has a width of 78(padx)

buttonc = Button(floor_8, padx=78, pady=5, text="C", fg="red", bg="white",
                 bd=5, font=('Old English Text MT', 10,)
                 )
buttonc.pack(side=TOP)
# ------------------------------------------------------------------------------
app.mainloop()

Useful Links

• Articles: https://python-commandments.org/
• Python shell: https://bsdnerds.org/learn-python/
• Tutorial: https://pythonprogramminglanguage.com/