Fájlok feltöltése a következőre: ''

main.py

@@ -0,0 +1,115 @@
+from tkinter import *
+
+expression = ""
+
+def press(num):
+
+    global expression
+    expression = expression + str(num)
+    equation.set(expression)
+
+def equalpress():
+
+    try:
+
+        global expression
+        total = str(eval(expression))
+        equation.set(total)
+        expression = ""
+
+    except:
+
+        equation.set(" error ")
+        expression = ""
+
+def clear():
+    global expression
+    expression = ""
+    equation.set("")
+
+
+if __name__ == "__main__":
+
+    gui = Tk()
+
+    gui.configure(background="black")
+
+    gui.title("Számológép")
+
+    gui.geometry("378x585")
+
+    equation = StringVar()
+
+    expression_field = Entry(gui, textvariable=equation)
+
+    expression_field.grid(columnspan=4, ipadx=125.4, ipady=28)
+
+    button1 = Button(gui, text=' 1 ', fg='black', bg='gray',
+                    command=lambda: press(1), height=6, width=12)
+    button1.grid(row=4, column=0)
+
+    button2 = Button(gui, text=' 2 ', fg='black', bg='gray',
+                    command=lambda: press(2), height=6, width=12)
+    button2.grid(row=4, column=1)
+
+    button3 = Button(gui, text=' 3 ', fg='black', bg='gray',
+                    command=lambda: press(3), height=6, width=12)
+    button3.grid(row=4, column=2)
+
+    button4 = Button(gui, text=' 4 ', fg='black', bg='gray',
+                    command=lambda: press(4), height=6, width=12)
+    button4.grid(row=3, column=0)
+
+    button5 = Button(gui, text=' 5 ', fg='black', bg='gray',
+                    command=lambda: press(5), height=6, width=12)
+    button5.grid(row=3, column=1)
+
+    button6 = Button(gui, text=' 6 ', fg='black', bg='gray',
+                    command=lambda: press(6), height=6, width=12)
+    button6.grid(row=3, column=2)
+
+    button7 = Button(gui, text=' 7 ', fg='black', bg='gray',
+                    command=lambda: press(7), height=6, width=12)
+    button7.grid(row=2, column=0)
+
+    button8 = Button(gui, text=' 8 ', fg='black', bg='gray',
+                    command=lambda: press(8), height=6, width=12)
+    button8.grid(row=2, column=1)
+
+    button9 = Button(gui, text=' 9 ', fg='black', bg='gray',
+                    command=lambda: press(9), height=6, width=12)
+    button9.grid(row=2, column=2)
+
+    button0 = Button(gui, text=' 0 ', fg='black', bg='gray',
+                    command=lambda: press(0), height=6, width=12)
+    button0.grid(row=5, column=0)
+
+    plus = Button(gui, text=' + ', fg='black', bg='orange',
+                command=lambda: press("+"), height=6, width=12)
+    plus.grid(row=5, column=3)
+
+    minus = Button(gui, text=' - ', fg='black', bg='orange',
+                command=lambda: press("-"), height=6, width=12)
+    minus.grid(row=4, column=3)
+
+    multiply = Button(gui, text=' * ', fg='black', bg='orange',
+                    command=lambda: press("*"), height=6, width=12)
+    multiply.grid(row=3, column=3)
+
+    divide = Button(gui, text=' / ', fg='black', bg='orange',
+                    command=lambda: press("/"), height=6, width=12)
+    divide.grid(row=2, column=3)
+
+    equal = Button(gui, text=' = ', fg='black', bg='orange',
+                command=equalpress, height=6, width=12)
+    equal.grid(row=5, column=2)
+
+    clear = Button(gui, text='Clear', fg='black', bg='orange',
+                command=clear, height=6, width=12)
+    clear.grid(row=6, column='0')
+
+    Decimal= Button(gui, text='.', fg='black', bg='orange',
+                    command=lambda: press('.'), height=6, width=12)
+    Decimal.grid(row=5, column=1)
+
+    gui.mainloop()