Simple calculator using tikinter

Calculator.py

@@ -4,9 +4,9 @@
 root = Tk()
 
 # Defining the title of the project*
-root.title("Simple Ca lculator")
+root.title("Simple Calculator")
 root.resizable(0,0,)
-e = Entry(root, width=35, font=("Times New roman", 18) , bg="skyblue", borderwidth=20)
+e = Entry(root, width=35 , font=("Times New roman", 18) , bg="skyblue" ,   borderwidth=20)
 e.grid(row=0, column=0, columnspan=10, padx=10, pady=10)
 
 
@@ -74,7 +74,7 @@ def button_divide():
 
 
 # Defining the buttons
-button_1 = Button(root, text="1", font=("Times New Roman", 20,), padx=40, pady=20, command=lambda: button_click(1))
+button_1 = Button(root, text="1", font=("Times New Roman", 20,), padx=40, pady=20, command=lambda:  button_click(1))
 button_2 = Button(root, text="2", font=("Times New Roman", 20,), padx=40, pady=20, command=lambda: button_click(2))
 button_3 = Button(root, text="3", font=("Times New Roman", 20,), padx=40, pady=20, command=lambda: button_click(3))
 button_4 = Button(root, text="4", font=("Times New Roman", 20,), padx=40, pady=20, command=lambda: button_click(4))
@@ -88,7 +88,7 @@ def button_divide():
 button_subtract = Button(root, text="-", font=("Times New Roman", 20,), padx=40, pady=20, command=button_subract)
 button_multiply = Button(root, text="×", font=("Times New Roman", 20,), padx=39, pady=20, command=button_multiply)
 button_divide = Button(root, text="÷", font=("Times New Roman", 20,), padx=39, pady=20, command=button_divide)
-button_equal = Button(root, bg="skyblue  ", font=("Times New Roman", 20,), text="=", padx=39, pady=20,
+button_equal = Button(root, bg="skyblue", font=("Times New Roman", 20,), text="=", padx=39, pady=20,
                       command=button_equal)
 button_clear = Button(root, text="Clear", bg="red", font=("Times New Roman", 20, ""), padx=20, pady=20,
                       command=button_clear)