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| from tkinter import *
class calculate():
def __init__(self):
self.root = Tk()
self.root.title("Calculator")
self.root.geometry("290x260")
self.root.maxsize(290, 260)
self.root.minsize(290, 260)
self.root.config(bg="grey")
self.resultwindow = Entry(self.root, borderwidth=5, relief=SUNKEN)
self.resultwindow.grid(row=0, column=0, columnspan=6, pady=5)
self.resultwindow.config(font=("Arial", 18))
self.resultwindow.focus_set() # Sets focus on the input text area
# Buttons
self.button1 = Button(self.root, text="1", width=3, command=lambda: self.ins('1'), relief=RAISED,
bg='light green')
self.button1.grid(row=1, column=0, padx=3, pady=3)
self.button1.config(font=("Arial", 18))
self.button2 = Button(self.root, text="2", width=3, command=lambda: self.ins('2'), relief=RAISED,
bg='light green')
self.button2.grid(row=1, column=1, padx=3, pady=3)
self.button2.config(font=("Arial", 18))
self.button3 = Button(self.root, text="3", width=3, command=lambda: self.ins('3'), relief=RAISED,
bg='light green')
self.button3.grid(row=1, column=2, padx=3, pady=3)
self.button3.config(font=("Arial", 18))
self.button4 = Button(self.root, text="4", width=3, command=lambda: self.ins('4'), relief=RAISED,
bg='light green')
self.button4.grid(row=2, column=0, padx=3, pady=3)
self.button4.config(font=("Arial", 18))
self.button5 = Button(self.root, text="5", width=3, command=lambda: self.ins('5'), relief=RAISED,
bg='light green')
self.button5.grid(row=2, column=1, padx=3, pady=3)
self.button5.config(font=("Arial", 18))
self.button6 = Button(self.root, text="6", width=3, command=lambda: self.ins('6'), relief=RAISED,
bg='light green')
self.button6.grid(row=2, column=2, padx=3, pady=3)
self.button6.config(font=("Arial", 18))
self.button7 = Button(self.root, text="7", width=3, command=lambda: self.ins('7'), relief=RAISED,
bg='light green')
self.button7.grid(row=3, column=0, padx=3, pady=3)
self.button7.config(font=("Arial", 18))
self.button8 = Button(self.root, text="8", width=3, command=lambda: self.ins('8'), relief=RAISED,
bg='light green')
self.button8.grid(row=3, column=1, padx=3, pady=3)
self.button8.config(font=("Arial", 18))
self.button9 = Button(self.root, text="9", width=3, command=lambda: self.ins('9'), relief=RAISED,
bg='light green')
self.button9.grid(row=3, column=2, padx=3, pady=3)
self.button9.config(font=("Arial", 18))
self.button0 = Button(self.root, text="0", width=3, command=lambda: self.ins('0'), relief=RAISED,
bg='light green')
self.button0.grid(row=4, column=0, padx=3, pady=3)
self.button0.config(font=("Arial", 18))
self.button_open = Button(self.root, text="(", width=3, command=lambda: self.ins('('), relief=RAISED)
self.button_open.grid(row=4, column=1, padx=3, pady=3)
self.button_open.config(font=("Arial", 18))
self.button_close = Button(self.root, text=")", width=3, command=lambda: self.ins(')'), relief=RAISED)
self.button_close.grid(row=4, column=2, padx=3, pady=3)
self.button_close.config(font=("Arial", 18))
# Operations Buttons
self.buttonplus = Button(self.root, text="+", width=3, command=lambda: self.ins('+'), relief=RAISED)
self.buttonplus.grid(row=1, column=3, padx=3, pady=3)
self.buttonplus.config(font=("Arial", 18))
self.buttonminus = Button(self.root, text="-", width=3, command=lambda: self.ins('-'), relief=RAISED)
self.buttonminus.grid(row=1, column=4, padx=3, pady=3)
self.buttonminus.config(font=("Arial", 18))
self.buttondivide = Button(self.root, text="/", width=3, command=lambda: self.ins('/'), relief=RAISED)
self.buttondivide.grid(row=2, column=3, padx=3, pady=3)
self.buttondivide.config(font=("Arial", 18))
self.buttonmultiply = Button(self.root, text="*", width=3, command=lambda: self.ins('*'), relief=RAISED)
self.buttonmultiply.grid(row=2, column=4, padx=3, pady=3)
self.buttonmultiply.config(font=("Arial", 18))
self.buttoncancel = Button(self.root, text="C", width=3, command=lambda: self.cancel(), relief=RAISED,
bg='#EF5350', fg='white')
self.buttoncancel.grid(row=3, column=4, padx=3, pady=3)
self.buttoncancel.config(font=("Arial", 18))
self.buttondeleteall = Button(self.root, text="Del", width=3, command=lambda: self.delete_all(), relief=RAISED)
self.buttondeleteall.grid(row=3, column=3, padx=3, pady=3)
self.buttondeleteall.config(font=("Arial", 18))
self.buttonresult = Button(self.root, text="=", width=7, command=lambda: self.calculate(), relief=RAISED,
bg='#FFEE58')
self.buttonresult.grid(row=4, column=3, padx=3, pady=3, columnspan=2)
self.buttonresult.config(font=("Arial", 18))
self.root.mainloop()
def ins(self, val):
self.resultwindow.insert(END, val)
def cancel(self):
self.resultwindow.delete(0, 'end')
def delete_all(self):
x = self.resultwindow.get()
self.resultwindow.delete(0, 'end')
y = x[:-1]
self.resultwindow.insert(0, y)
def calculate(self):
x = self.resultwindow.get()
answer = eval(x)
self.resultwindow.delete(0, 'end')
self.resultwindow.insert(0, answer)
if __name__ == "__main__":
calculate() |
(
