bullet3/examples/pybullet/gym/pybullet_envs/kerasrl_utils.py
Erwin Coumans 21f9d1b816 refactor pybullet/gym to allow instantiating environments directly from a pybullet install:
work-in-progress (need to add missing data files, fix paths etc)

example:

pip install pybullet
pip install gym

python
import gym
import pybullet
import pybullet_envs
env = gym.make("HumanoidBulletEnv-v0")
2017-08-22 00:42:02 -07:00

29 lines
1.1 KiB
Python

import re
from gym import error
import glob
# checkpoints/KerasDDPG-InvertedPendulum-v0-20170701190920_actor.h5
weight_save_re = re.compile(r'^(?:\w+\/)+?(\w+-v\d+)-(\w+-v\d+)-(\d+)(?:_\w+)?\.(\w+)$')
def get_fields(weight_save_name):
match = weight_save_re.search(weight_save_name)
if not match:
raise error.Error('Attempted to read a malformed weight save: {}. (Currently all weight saves must be of the form {}.)'.format(id,weight_save_re.pattern))
return match.group(1), match.group(2), int(match.group(3))
def get_latest_save(file_folder, agent_name, env_name, version_number):
"""
Returns the properties of the latest weight save. The information can be used to generate the loading path
:return:
"""
path = "%s%s"% (file_folder, "*.h5")
file_list = glob.glob(path)
latest_file_properties = []
file_properties = []
for f in file_list:
file_properties = get_fields(f)
if file_properties[0] == agent_name and file_properties[1] == env_name and (latest_file_properties == [] or file_properties[2] > latest_file_properties[2]):
latest_file_properties = file_properties
return latest_file_properties