#!/usr/bin/python3

import tkinter as tk

class Point ():
  def __init__ (self, x, y):
    self.x = x
    self.y = y

class Board (tk.Frame):
  def __init__ (self, bg, dimensions):
    tk.Frame.__init__ (self, tk.Tk())
    self.pack()
    self.canvas = tk.Canvas (self, bd = 0, bg = bg, width = dimensions.x, height = dimensions.y)
    self.canvas.pack (side = "top")
  def drawLine (self, pa, pb, color):
    self.canvas.create_line (pa.x, pa.y, pb.x, pb.y, fill = color)
  def drawPoint (self, p, color):
    self.canvas.create_line (p.x, p.y, p.x, p.y, fill = color)

dimensions = Point (500, 500)
board = Board ('black', dimensions)
color = 'red'
p = Point (0, 250)
while (p.x < dimensions.x):
  board.drawPoint (p, color)
  p.x += 1
pa = Point (0, 350)
pb = Point (499, 350)
board.drawLine (pa, pb, color)
board.mainloop()