Update main.py

Creates a new 'App' class that creates and runs the calculator app.

Author: self-init

calculator/main.py

@@ -2,21 +2,33 @@
 from gui import button, display
 from api import calculator as calc
 
-if __name__ == "__main__":
-    c = calc.Calculator()
-    main = tk.Tk()
-    main.title("Calculator")
-
-    calc_display = display.CalculatorDisplay(c)
-    calc_display.create_gui(main)
-    calc_display.frame.pack(fill=tk.BOTH,expand=True,side=tk.TOP,padx=10,pady=(10,0))
+class App:
+    def __init__(self):
+        self.calculator = calc.Calculator()
+        self.window = tk.Tk()
+        self.display = None
+        self.buttons = None
+    
+    def create_gui(self):
+        self.window.title("Calculator")
 
-    calc_buttons = button.CalculatorButtons(c)
-    calc_buttons.create_gui(main)
-    calc_buttons.frame.pack(fill=tk.BOTH,expand=True,side=tk.BOTTOM,padx=10,pady=(0,10))
+        self.display = display.CalculatorDisplay(self.calculator)
+        self.buttons = button.CalculatorButtons(self.calculator)
+        
+        self.display.frame.pack(fill=tk.BOTH,expand=True,side=tk.TOP,padx=10,pady=(10,0))
+        self.buttons.frame.pack(fill=tk.BOTH,expand=True,side=tk.BOTTOM,padx=10,pady=(0,10))
+    
+    def update(self):
+        self.buttons.update()
+        self.display.update()
+        self.window.update_idletasks()
+        self.window.update()
 
-    while True:
-        calc_buttons.update()
-        calc_display.update()
-        main.update_idletasks()
-        main.update()
+    def run(self):
+        while True:
+            self.update()
+
+
+if __name__ == "__main__":
+    my_app = App()
+    my_app.run()