understand this error AttributeError Turtle object has no attribute Listen Any ideas

Question

this is my code

import turtle
import random
from turtle import *

m = turtle.Turtle()
m.speed(0)
m.width(7)

def go_up():
    if head.direction != "down":
        head.direction = "up"

def go_down():
    if head.direction != "up":
        head.direction = "down"

def go_left():
    if head.direction != "right":
        head.direction = "left"

def go_right():
    if head.direction != "left":
        head.direction = "right"

def move():
    if head.direction == "up":
        y = head.ycor()
        head.sety(y + 20)

    if head.direction == "down":
        y = head.ycor()
        head.sety(y - 20)

    if head.direction == "left":
        x = head.xcor()
        head.setx(x - 20)

    if head.direction == "right":
        x = head.xcor()
        head.setx(x + 20)

m.Listen()
m.onkeypress(go_up, "w")
m.onkeypress(go_down, "s")
m.onkeypress(go_left, "a")
m.onkeypress(go_right, "d")

Answer 1

Hey, @Mohammed,

You are getting this error because you are trying to access an attribute or method that does not exist on the object.

Try to replace:

m.Listen()

With the following:

m.listen()

Since python is case sensitive, "Listen" and "listen" makes a difference. Hence the error. 

I hope this will omit your error.