Artificial Intelligence and Python -LIVE CODING Part 1. MY Gridworld, 'graphics,' code explained.

Current topics of interest, are Two minute papers, Artificial Intelligence, AI, Reinforcement Learning, Q learning, Gridworld, Space X, Hyperloop, Sophia robot, Nextbigfuture, Singularity Net and Python code (coding). In Part 2, i go through MY code in detail for the 'grid' graphics. See code below on my github.

[sharo]

good day
i got error on this line self.panvas = self.root.Canvas(bg='black', height=400, width=500)
im using google colab, any hint(s)