Convert code to python 2.7 (#35)

* Convert code format to python2.7 (SAC)

* Convert code format python2.7 (TD3, all fD)

* Remove no use import and black setting

* Change SAC param

* Change env name Reacher-v2 to v1

* Remove old version reacher training script

* Convert code format python2.7

* Modify .travis.yml

* Add install command python3.6 & black on Makefile

* Fix seperator to tab on Makefile

* Modify Makefile

* Fix little error

* Change td3 gamma parameter

scripts/examples/lunarlander_continuous_v2/sac.py

@@ -5,9 +5,6 @@
 - Contact: curt.park@medipixel.io
 """
 
-import argparse
-
-import gym
 import numpy as np
 import torch
 import torch.optim as optim
@@ -39,7 +36,7 @@ hyper_params = {
 }
 
 
-def run(env: gym.Env, args: argparse.Namespace, state_dim: int, action_dim: int):
+def run(env, args, state_dim, action_dim):
     """Run training or test.
 
     Args:

scripts/examples/lunarlander_continuous_v2/sacfd.py

@@ -5,9 +5,6 @@
 - Contact: curt.park@medipixel.io
 """
 
-import argparse
-
-import gym
 import numpy as np
 import torch
 import torch.optim as optim
@@ -48,7 +45,7 @@ hyper_params = {
 }
 
 
-def run(env: gym.Env, args: argparse.Namespace, state_dim: int, action_dim: int):
+def run(env, args, state_dim, action_dim):
     """Run training or test.
 
     Args:

scripts/examples/lunarlander_continuous_v2/td3.py

@@ -5,9 +5,6 @@
 - Contact: whikwon@gmail.com
 """
 
-import argparse
-
-import gym
 import torch
 import torch.optim as optim
 
@@ -34,7 +31,7 @@ hyper_params = {
 }
 
 
-def run(env: gym.Env, args: argparse.Namespace, state_dim: int, action_dim: int):
+def run(env, args, state_dim, action_dim):
     """Run training or test.
 
     Args:

scripts/examples/lunarlander_continuous_v2/td3fd.py

@@ -5,9 +5,6 @@
 - Contact: seungjaeryanlee@gmail.com
 """
 
-import argparse
-
-import gym
 import torch
 import torch.optim as optim
 
@@ -46,7 +43,7 @@ hyper_params = {
 }
 
 
-def run(env: gym.Env, args: argparse.Namespace, state_dim: int, action_dim: int):
+def run(env, args, state_dim, action_dim):
     """Run training or test.
 
     Args: