# bar graph gen

itemnames = ["a", "b", "c"]
itemvalues = [10, 10, 100]

highest = max(itemvalues)

from tkinter import *

root = Tk()

canvas = Canvas(root, width=600, height=600)
canvas.pack()

hline = canvas.create_line(50, 550, 600, 550)
vline = canvas.create_line(50, 550, 50, 0)

vscale = highest/10
bottom = canvas.create_text(42, 10, text="{}".format(highest))
ts = 0
for i in range(int(vscale)):
    ts += 10
    positiony = 550/vscale
    canvas.create_text(42, positiony*(i+1), text="{}".format((highest-(ts))))

fvlog = []

for i in range(int(len(itemnames))):
    positionx = 550/len(itemnames)
    fvlog.append(positionx*(i+1))
    canvas.create_text(positionx*(i+1), 558,  text="{}".format(itemnames[i]))

barwidth = ((positionx/3))

toscale = highest

for i in range(len(itemvalues)):
    barheight = ?????????????????????
    bar = canvas.create_line(fvlog[i], 550, fvlog[i], barheight, width=barwidth, fill='red')