Docs changes - fixing blogpost links, removing importing all exploration policies (#139)

* updated docs

* removing imports for all exploration policies in __init__ + setting the right blog-post link

* small cleanups

rl_coach/agents/agent.py

@@ -15,13 +15,11 @@
 #
 
 import copy
-import os
 import random
 from collections import OrderedDict
 from typing import Dict, List, Union, Tuple
 
 import numpy as np
-from pandas import read_pickle
 from six.moves import range
 
 from rl_coach.agents.agent_interface import AgentInterface

rl_coach/coach.py

@@ -35,7 +35,6 @@ from multiprocessing.managers import BaseManager
 import subprocess
 from rl_coach.graph_managers.graph_manager import HumanPlayScheduleParameters, GraphManager
 from rl_coach.utils import list_all_presets, short_dynamic_import, get_open_port, SharedMemoryScratchPad, get_base_dir
-from rl_coach.agents.human_agent import HumanAgentParameters
 from rl_coach.graph_managers.basic_rl_graph_manager import BasicRLGraphManager
 from rl_coach.environments.environment import SingleLevelSelection
 from rl_coach.memories.backend.redis import RedisPubSubMemoryBackendParameters
@@ -229,6 +228,8 @@ class CoachLauncher(object):
 
         # for human play we need to create a custom graph manager
         if args.play:
+            from rl_coach.agents.human_agent import HumanAgentParameters
+
             env_params = short_dynamic_import(args.environment_type, ignore_module_case=True)()
             env_params.human_control = True
             schedule_params = HumanPlayScheduleParameters()

rl_coach/exploration_policies/__init__.py

@@ -1,55 +0,0 @@
-#
-# Copyright (c) 2017 Intel Corporation 
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-from .additive_noise import AdditiveNoiseParameters, AdditiveNoise
-from .boltzmann import BoltzmannParameters, Boltzmann
-from .bootstrapped import BootstrappedParameters, Bootstrapped
-from .categorical import CategoricalParameters, Categorical
-from .continuous_entropy import ContinuousEntropyParameters, ContinuousEntropy
-from .e_greedy import EGreedyParameters, EGreedy
-from .exploration_policy import ExplorationParameters, ExplorationPolicy
-from .greedy import GreedyParameters, Greedy
-from .ou_process import OUProcessParameters, OUProcess
-from .parameter_noise import ParameterNoiseParameters, ParameterNoise
-from .truncated_normal import TruncatedNormalParameters, TruncatedNormal
-from .ucb import UCBParameters, UCB
-
-__all__ = [
-    'AdditiveNoiseParameters',
-    'AdditiveNoise',
-    'BoltzmannParameters',
-    'Boltzmann',
-    'BootstrappedParameters',
-    'Bootstrapped',
-    'CategoricalParameters',
-    'Categorical',
-    'ContinuousEntropyParameters',
-    'ContinuousEntropy',
-    'EGreedyParameters',
-    'EGreedy',
-    'ExplorationParameters',
-    'ExplorationPolicy',
-    'GreedyParameters',
-    'Greedy',
-    'OUProcessParameters',
-    'OUProcess',
-    'ParameterNoiseParameters',
-    'ParameterNoise',
-    'TruncatedNormalParameters',
-    'TruncatedNormal',
-    'UCBParameters',
-    'UCB'
-]