feature: Specify opponent by path

[sakami0000]

• Agent specification at evaluation can be done by path.

src/agent.py

from handyrl.agent import RandomAgent
from handyrl.evaluation import register_agent

@register_agent(alias="transformer")
class TransformerAgent(RandomAgent):
    def __init__(self, temperature=0.0):
        self.temperature = temperature

    def action(self, env, player, show=False):
        action = model_predict(env, player, temperature=self.temperature)
        return action

python main.py -e random:src.agent.TransformerAgent 100 8

• Arguments can be set by comma-separated style.

python main.py -e random:src.agent.TransformerAgent,temperature=1.0 100 8

• Strings containing comma are given as arguments by enclosing them in quotation marks.

NOTE: The entire target value must be enclosed in another quotation marks because quotation marks are erased in python arguments.

python main.py -e random:'src.agent.TransformerAgent,hoge="hoge, fuga"' 100 8

• Alias can be set by using handyrl.evaluation.register_agent.

NOTE: The agent class must be defined in the current context.

main.py

import src.agent

python main.py -e random:transformer,temperature=0.5 100 8

• All of the above features can also be used in opponent specifications in config.yaml.

opponent: [
    'src.agent.TransformerAgent,temperature=0.5',
    'src.agent.TransformerAgent,temperature=0.5,hoge="hoge, fuga"'
]

• Spaces before and after commas are automatically erased.

opponent: [
    'src.agent.TransformerAgent, temperature=0.5',
    'src.agent.TransformerAgent, temperature=0.5, hoge="hoge, fuga"'
]