python-desktop-projects/Tkinter_Learning.py at master · Alimov-8/python-desktop-projects · GitHub

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from tkinter import *

# Main Window
from tkinter import font

root = Tk()
root.title("Simple Calculator")

# Define Entry
e = Entry(root, fg='Black', width=35, borderwidth=5)
e.grid(row=0, column=0, columnspan=3, padx=10, pady=10)
# e.insert(0, "Enter your name")


def button_click(number):
    current = e.get()
    e.delete(0, END)
    e.insert(0, str(current) + str(number))


def button_clear():
    e.delete(0, END)


def button_add():
    first_number = int(e.get())
    global f_num
    global math
    math = "add"
    f_num = first_number
    e.delete(0, END)


def button_equal():
    second_number = int(e.get())
    e.delete(0, END)
    if math == "add":
        e.insert(0, f_num + second_number)
    if math == "div":
        e.insert(0, f_num / second_number)
    if math == "mul":
        e.insert(0, f_num * second_number)
    if math == "sub":
        e.insert(0, f_num - second_number)


def button_sub():
    first_number = int(e.get())
    global f_num
    global math
    math = "sub"
    f_num = first_number
    e.delete(0, END)


def button_mul():
    first_number = int(e.get())
    global f_num
    global math
    math = "mul"
    f_num = first_number
    e.delete(0, END)


def button_div():
    first_number = int(e.get())
    global f_num
    global math
    math = "div"
    f_num = first_number
    e.delete(0, END)


# Define Buttons
myFont = font.Font(size=15)

button_1 = Button(root, text="1", padx=34, pady=12, command=lambda: button_click(1))
button_2 = Button(root, text="2", padx=34, pady=12, command=lambda: button_click(2))
button_3 = Button(root, text="3", padx=34, pady=12, command=lambda: button_click(3))
button_4 = Button(root, text="4", padx=34, pady=12, command=lambda: button_click(4))
button_5 = Button(root, text="5", padx=34, pady=12, command=lambda: button_click(5))
button_6 = Button(root, text="6", padx=34, pady=12, command=lambda: button_click(6))
button_7 = Button(root, text="7", padx=34, pady=12, command=lambda: button_click(7))
button_8 = Button(root, text="8", padx=34, pady=12, command=lambda: button_click(8))
button_9 = Button(root, text="9", padx=34, pady=12, command=lambda: button_click(9))
button_0 = Button(root, text="0", padx=34, pady=12, command=lambda: button_click(0))

button_add = Button(root, text="+", padx=35, pady=12, command=button_add, bg="#546789")
button_sub = Button(root, text="-", padx=37, pady=11, command=button_sub, bg="#546789")
button_mul = Button(root, text="x", padx=37, pady=11, command=button_mul, bg="#546789")
button_div = Button(root, text="/", padx=36, pady=11, command=button_div, bg="#546789")
button_equal = Button(root, text="=", padx=88, pady=20, command=button_equal, bg="#546789")
button_clear = Button(root, text="Clear", padx=79, pady=20, command=button_clear, bg="#546250")

# Size of Text
button_1['font'] = myFont
button_2['font'] = myFont
button_3['font'] = myFont
button_4['font'] = myFont
button_5['font'] = myFont
button_6['font'] = myFont
button_7['font'] = myFont
button_8['font'] = myFont
button_9['font'] = myFont
button_0['font'] = myFont
button_add['font'] = myFont
button_sub['font'] = myFont
button_mul['font'] = myFont
button_div['font'] = myFont

# Put buttons on the screen
button_1.grid(row=3, column=0)
button_2.grid(row=3, column=1)
button_3.grid(row=3, column=2)

button_4.grid(row=2, column=0)
button_5.grid(row=2, column=1)
button_6.grid(row=2, column=2)

button_7.grid(row=1, column=0)
button_8.grid(row=1, column=1)
button_9.grid(row=1, column=2)

button_0.grid(row=4, column=0)

button_clear.grid(row=4, column=1, columnspan=2)
button_add.grid(row=5, column=0)
button_sub.grid(row=6, column=0)
button_mul.grid(row=6, column=1)
button_div.grid(row=6, column=2)
button_equal.grid(row=5, column=1, columnspan=2)


root.mainloop()