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@noporpoise
noporpoise / unifieddiff.py
Last active July 11, 2024 11:13
Apply unified diff patches in pure python2/3
#!/usr/bin/env python
# coding=utf-8
# License: Public domain (CC0)
# Isaac Turner 2016/12/05
from __future__ import print_function
import difflib
import re
@karpathy
karpathy / pg-pong.py
Created May 30, 2016 22:50
Training a Neural Network ATARI Pong agent with Policy Gradients from raw pixels
""" Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """
import numpy as np
import cPickle as pickle
import gym
# hyperparameters
H = 200 # number of hidden layer neurons
batch_size = 10 # every how many episodes to do a param update?
learning_rate = 1e-4
gamma = 0.99 # discount factor for reward