i need help with this error ExternalError: TypeError: Cannot read properties of undefined (reading 'tp$mro') on line 5 in dacoolthing.py

this is the code:

from turtle import *

class char(Turtle):
  def __init__(self):
    super().__init__()
    self.penup()
    self.shape("turtle")
    self.goto(0,0)
    self.speed(0)
  def attack():
    print()