try:
    import tkinter as tk
except ImportError:
    import Tkinter as tk

WIDTH, HEIGHT = 800, 600
FONT_HEADER = ("Verdana", 16, "bold")
FONT_OPTION = ('Verdana', 12)


class MainApplication(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        tk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.parent.title('test')
        self.parent.geometry(f'{WIDTH}x{HEIGHT}')
        self.parent.minsize(WIDTH, HEIGHT)
        self.parent.maxsize(WIDTH, HEIGHT)

        self.create_menu()

        self.create_left_menu()
        self.place_left_menu()

    def create_menu(self):
        self.menu = tk.Menu(self)
        self.menu_options = {}
        self.parent.config(menu=self.menu)

        # FILE
        self.menu_options['file'] = tk.Menu(self.menu, tearoff=0)
        self.menu.add_cascade(label='File', menu=self.menu_options['file'])
        self.menu_options['file'].add_command(label='New', command=lambda: about())
        self.menu_options['file'].add_command(label='Open...', command=lambda: about())
        self.menu_options['file'].add_separator()
        self.menu_options['file'].add_command(label='Exit', command=lambda: self.parent.quit())

        # PRODUCTS
        self.menu_options['products'] = tk.Menu(self.menu, tearoff=0)
        self.menu.add_cascade(label='Products', menu=self.menu_options['products'])
        self.menu_options['products'].add_command(label='WZ...', command=lambda: about())
        self.menu_options['products'].add_command(label='PZ...', command=lambda: about())
        self.menu_options['products'].add_command(label='About...', command=lambda: [about(), about()])

        # MAGAZYN
        self.menu_options['magazyn'] = tk.Menu(self.menu, tearoff=0)
        self.menu.add_cascade(label='Magazyn', menu=self.menu_options['magazyn'])
        self.menu_options['magazyn'].add_command(label='Raporty...', command=lambda: about())
        self.menu_options['magazyn'].add_command(label='Przepyw...', command=lambda: about())
        self.menu_options['magazyn'].add_command(label='About...', command=lambda: about())

        # SETTINGS
        self.menu_options['settings'] = tk.Menu(self.menu, tearoff=0)
        self.menu.add_cascade(label='Setting', menu=self.menu_options['settings'])
        self.menu_options['settings'].add_command(label='About...', command=lambda: about())

        # HELP
        self.menu_options['help'] = tk.Menu(self.menu, tearoff=0)
        self.menu.add_cascade(label='Help', menu=self.menu_options['help'])
        self.menu_options['help'].add_command(label='About...', command=lambda: about())


    def create_left_menu(self):
        self.left_menu = {}

        self.left_menu['header'] = tk.Label(self.parent, text='Nagłówek opcji', font=FONT_HEADER)
        self.left_menu['option1'] = tk.Button(self.parent, text='Option1', font=FONT_OPTION, command=lambda: print('Hello'))
        self.left_menu['option2'] = tk.Button(self.parent, text='option2', font=FONT_OPTION, command=lambda: print('Hello'))
        self.left_menu['option3'] = tk.Button(self.parent, text='option3', font=FONT_OPTION, command=lambda: print('Hello'))
        self.left_menu['option4'] = tk.Button(self.parent, text='option4', font=FONT_OPTION, command=lambda: print('Hello'))
        self.left_menu['option5'] = tk.Button(self.parent, text='option5', font=FONT_OPTION, command=lambda: print('Hello'))
        self.left_menu['option6'] = tk.Button(self.parent, text='option6', font=FONT_OPTION, command=lambda: print('Hello'))

    def place_left_menu(self, number=6):

        if number > len(self.left_menu) - 1:
            number = len(self.left_menu) - 1

        for i, item in enumerate(self.left_menu[:number+1]):
            self.left_menu[item].place(x=5, y=50+40*i)

    def hide_left_menu(self):
        for i, item in enumerate(self.left_menu[:number+1]):
            self.left_menu[item].forget_place()

    def cmd(self, command):
        pass


if __name__ == "__main__":
    root = tk.Tk()
    MainApplication(root)  # .pack(side="top", fill="both", expand=True)
    root.mainloop()