$($i$)$ The lines containing errors are commented out, and new lines are added with corrected code.

$($ii$)$ The omissions are corrected.

$($iii$)$ The fit function stops when no more iterations are necessary, and stores the number of iterations required for the training.

$($iv$)$ The perceptron maintains a history of its weights, i$.$e$.$ the set of weights after each point is processed.