title: Error in Turtle Module
body: <pre><code>#!usr/bin/env python
  from turtle import Turtle
  timmy = Turtle #A turtle called Timmy. 
  
  pointA = None
  pointB = None
  backgroundColour = (255,255,255)
  penColour = (0,0,0) #So I can just say penColour, as opposed to (0,0,0)
  graphicsWindowHeight = 640
  graphicsWindowWidth = 640
  equation = str(input("What is the equation as y=mx+c?Do not use spaces, please, it messes up the            code"))
  if len(equation) != 6:
      print("You have broken my code. It is not perfect") #Short explanation
  
  #(equation[3]) is gradient, and (equation[5]) is y-intercept, and x-intercept is equation[5] / equation[3]
  
  def calculateAndDrawLine(pointA, pointB):
      #CALCULATE WHAT TO DRAW
      #y = 10 here
      pointA = ((equation[3]/-10)+10)*32,0
      #y = -10 here
      pointB = ((equation[3]/-10)*-1)+10*32,640
      #DRAW IT
      timmy.pencolor(penColour)
      timmy.penwidth(10)
      timmy.pendown()
      timmy.setpos(pointA[0],pointA[1])
      timmy.seth(pointB[0],pointB[1])
  
  
  def drawAxis():
      timmy.setpos(320,-640)
      timmy.pencolor(penColour)
      timmy.penwidth(10)
      timmy.seth(320,0)
      timmy.setpos(320,0)
      timmy.seth(320,-320)
  
  drawAxis()
  calculateAndDrawLine()
  </code></pre>
  
  <p>This is my code, and it's not finished yet. I am trying to get it to draw the line o the equation inputted, using turtle graphics. But when I run it, I get this error. Is there anything I can do?</p>
  
  <pre><code>Traceback (most recent call last):
    File "C:\Users\Adam Powell\Documents\Python\Line drawer.py", line 34, in &lt;module&gt;
  drawAxis()
    File "C:\Users\Adam Powell\Documents\Python\Line drawer.py", line 27, in drawAxis
  timmy.setpos(320,-640)
    File "C:\Python34\lib\turtle.py", line 1773, in goto
      self._goto(Vec2D(*x))
  AttributeError: 'int' object has no attribute '_goto'
  </code></pre>