tester.py

import YOUR_AI_FILENAME_HERE as AI

def get_sharpness(move_sequence: str):
	def change_in_sharp(current_sharp: int, action: str):
		if action == 'P' and current_sharp > 0:
			return current_sharp - 1
		elif action == 'S':
			return current_sharp + 1
		else:
			return current_sharp
	sharpness = 0
	for i in move_sequence:
		sharpness = change_in_sharp(sharpness, i)
	return sharpness

def get_winner(player_move_string, opp_move_string, player_move, opp_move):
	player_sharp = get_sharpness(player_move_string)
	opp_sharp = get_sharpness(opp_move_string)
	player_sword = player_sharp >= 5
	opp_sword = opp_sharp >= 5

	if player_move == 'P' and ((opp_move == 'S' and player_sharp > 0) or (player_sword and not (opp_sword and opp_move == 'P'))):
		return True


human_move_string = ''
AI_move_string = ''

while True:
	moves_string = AI_move_string + ',' + human_move_string

	print('Human, your sharpness is {}'.format(get_sharpness(human_move_string)))
	print('The AIs sharpness is     {}'.format(get_sharpness(AI_move_string)))

	human_move = input("Make a move (S/P/B): ").upper()
	AI_move = AI.move(moves_string)

	assert human_move in ('S', 'P', 'B'), 'Move should be one of the following characters: S, P, B'
	assert AI_move in ('S', 'P', 'B'), 'Move should be one of the following characters: S, P, B'

	print('human_move: {}'.format(human_move))
	print('AI move:    {}'.format(AI_move))

	if get_winner(AI_move_string, human_move_string, AI_move, human_move):
		print('AI WINS!!!! KILL ALL HUMANS')
		break
	if get_winner(human_move_string, AI_move_string, human_move, AI_move):
		print('HUMAN WINS!!! SUCK IT, ROBOTS')
		break
	
	human_move_string += human_move
	AI_move_string += AI_move

	print()

HOW TO USE:

1. in the top line, replace YOUR_AI_FILENAME_HERE with the filename of your python module (without the .py).
2. Your file needs to have a function named move() which takes as inputs the move-history-strings, and RETURNS the character of your move (S, P, or B).