How to define the pen width in the menu bar

Question

I am trying to write the code for my own paint program. I have added the menu for few basic color options. Now I would like to add the same menu style pen width option (e.g. 5, 10, according to the user's choice). But I'm stuck here. Please advise, Thanks!

Here I am importing libraries

     from tkinter import *
     import tkinter as tk
     from tkinter import Tk, Canvas, Frame, BOTH
     import turtle

     current_x, current_y = 0,0
     color = 'black'
     width = 10

Then Define functions

     def locate_xy(event):
        global current_x, current_y
        current_x, current_y = event.x, event.y

     def addLine(event):
         global current_x, current_y
         canvas.create_line((current_x, current_y, event.x, event.y), fill=color, width=width)
         current_x, current_y = event.x, event.y

    def show_color(new_color):
        global color
        color = new_color

    def new_canvas():
        canvas.delete('all')
        display_pallete()

Plot Canvas and setup menus

    root = Tk()  
    canvas = Canvas()

    root.rowconfigure(0, weight=1)
    root.columnconfigure(0, weight=1)

    menubar = Menu(root)
    root.config(menu = menubar)
    submenu = Menu(menubar, tearoff=0)

Here I define menu lines and here I am stuck

    menubar.add_cascade(label='File', menu=submenu)
    submenu.add_command(label='Novo okno', command=new_canvas)
    submenu.add_command(label='Velikost')
    **submenu.add_command(label='5', command=width)** ?????????

    canvas=Canvas(root, background='white')
    canvas.grid(row=0,column=0, sticky='nsew')

    canvas.bind('<Button-1>',locate_xy)
    canvas.bind('<B1-Motion>', addLine)

Here is the color pallete

    def display_pallete():
        id = canvas.create_rectangle((10, 10,30,30), fill='black')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('black'))

        id = canvas.create_rectangle((10, 40,30,60), fill='gray')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('gray'))

        id = canvas.create_rectangle((10, 70,30,90), fill='brown4')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('brown4'))

        id = canvas.create_rectangle((10, 100,30,120), fill='red')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('red'))

        id = canvas.create_rectangle((10, 130,30,150), fill='orange')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('orange'))

        id = canvas.create_rectangle((10, 160,30,180), fill='yellow')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('yellow'))

        id = canvas.create_rectangle((10, 190,30,210), fill='green')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('green'))

        id = canvas.create_rectangle((10, 220,30,240), fill='blue')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('blue'))

        id = canvas.create_rectangle((10, 250,30,270), fill='purple')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('purple'))

        id = canvas.create_rectangle((10, 280,30,300), fill='darkred')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('darkred'))

        id = canvas.create_rectangle((10, 310,30,330), fill='coral')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('coral'))

        id = canvas.create_rectangle((10, 340,30,360), fill='orangered')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('orangered'))

        id = canvas.create_rectangle((10, 370,30,390), fill='lawngreen')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('lawngreen'))

        id = canvas.create_rectangle((10, 400,30,420), fill='limegreen')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('limegreen'))

        id = canvas.create_rectangle((10, 430,30,450), fill='springgreen')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('springgreen'))

        id = canvas.create_rectangle((10, 460,30,480), fill='seagreen')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('seagreen'))

        id = canvas.create_rectangle((10, 490,30,510), fill='cyan')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('cyan'))

        id = canvas.create_rectangle((10, 520,30,540), fill='teal')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('teal'))

        id = canvas.create_rectangle((10, 550,30,570), fill='powderblue')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('powderblue'))

        id = canvas.create_rectangle((10, 580,30,600), fill='navy')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('navy'))

        id = canvas.create_rectangle((10, 610,30,630), fill='slateblue')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('slateblue'))

        id = canvas.create_rectangle((10, 640,30,660), fill='lavender')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('lavender'))

        id = canvas.create_rectangle((10, 670,30,690), fill='violet')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('violet'))

        id = canvas.create_rectangle((10, 700,30,720), fill='darkviolet')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('darkviolet'))

        id = canvas.create_rectangle((10, 730,30,750), fill='peru')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('peru'))

        id = canvas.create_rectangle((10, 760,30,780), fill='white')
        canvas.tag_bind(id, '<Button-1>', lambda x: show_color('white'))


    display_pallete()

    # Open window having dimension 100x100


    root.geometry('2000x1000')
    root.configure(bg='aqua')
    root.title("Risalni stroj")

    root.mainloop()