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code.py
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code.py
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#python
import tkinter as tk
calculation= ""
#calculation
def add_to_calculation(symbol):
global calculation
calculation +=str(symbol)
text_result.delete(1.0, "end")
text_result.insert(1.0, calculation)
#evaluate
def evaluate_calculation():
global calculation
try:
result = str(eval(calculation))
calculation = ""
text_result.delete(1.0, "end")
text_result.insert(1.0,result)
except:
clear_field()
text_result.insert(1.0, "Erorr")
#clear field
def clear_field():
global calculation
calculation = ""
text_result.delete(1.0, "end")
#tk
root = tk.Tk()
root.geometry("300x275")
text_result = tk.Text(root, height=2 , width=16, font=("Arial",24))
text_result.grid(columnspan=5)
#1
btn_1 = tk.Button(root, text="1", command=lambda:add_to_calculation(1), width=5,font=("Arial",14))
btn_1.grid(row=2 , column=1)
#2
btn_2 = tk.Button(root, text="2", command=lambda:add_to_calculation(2), width=5,font=("Arial",14))
btn_2.grid(row=2 , column=2)
#3
btn_3 = tk.Button(root, text="3", command=lambda:add_to_calculation(3), width=5,font=("Arial",14))
btn_3.grid(row=2 , column=3)
#4
btn_4 = tk.Button(root, text="4", command=lambda:add_to_calculation(4), width=5,font=("Arial",14))
btn_4.grid(row=3 , column=1)
#5
btn_5 = tk.Button(root, text="5", command=lambda:add_to_calculation(5), width=5,font=("Arial",14))
btn_5.grid(row=3 , column=2)
#6
btn_6 = tk.Button(root, text="6", command=lambda:add_to_calculation(6), width=5,font=("Arial",14))
btn_6.grid(row=3 , column=3)
#7
btn_7 = tk.Button(root, text="7", command=lambda:add_to_calculation(7), width=5,font=("Arial",14))
btn_7.grid(row=4 , column=1)
#8
btn_8 = tk.Button(root, text="8", command=lambda:add_to_calculation(8), width=5,font=("Arial",14))
btn_8.grid(row=4 , column=2)
#9
btn_9 = tk.Button(root, text="9", command=lambda:add_to_calculation(9), width=5,font=("Arial",14))
btn_9.grid(row=4 , column=3)
#0
btn_0 = tk.Button(root, text="0", command=lambda:add_to_calculation(0), width=5,font=("Arial",14))
btn_0.grid(row=5 , column=2)
#plus
btn_plus = tk.Button(root, text="+", command=lambda:add_to_calculation("+"), width=5,font=("Arial",14))
btn_plus.grid(row=2 , column=4)
#minus
btn_minus = tk.Button(root, text="-", command=lambda:add_to_calculation("-"), width=5,font=("Arial",14))
btn_minus.grid(row=3 , column=4)
#mult
btn_mul = tk.Button(root, text="*", command=lambda:add_to_calculation("*"), width=5,font=("Arial",14))
btn_mul.grid(row=4 , column=4)
#div
btn_div = tk.Button(root, text="/", command=lambda:add_to_calculation("/"), width=5,font=("Arial",14))
btn_div.grid(row=5 , column=4)
#open
btn_open = tk.Button(root, text="(", command=lambda:add_to_calculation("("), width=5,font=("Arial",14))
btn_open.grid(row=5 , column=1)
#close
btn_close = tk.Button(root, text=")", command=lambda:add_to_calculation(")"), width=5,font=("Arial",14))
btn_close.grid(row=5 , column=3)
#clear
btn_clear = tk.Button(root, text="C", command=clear_field, width=15,font=("Arial",14))
btn_clear.grid(row=6 , column=1, columnspan=2)
btn_equals = tk.Button(root, text="=", command=evaluate_calculation, width=15,font=("Arial",14))
btn_equals.grid(row=6 , column=3, columnspan=2)
root.mainloop()