Move Algorithmic Environments to Third Party Repo (#2344)

* try removing algorithmic environments * fix tests * algorithmic environments * Moved algorithmic environments (#2363) * Moved algorithmic environments Moved algorithmic environments Moved algorithmic environments * blacken * remove bad link Co-authored-by: Rohan138 <[email protected]>
openai · Aug 27, 2021 · 1504041 · 1504041
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diff --git a/docs/environments.md b/docs/environments.md
@@ -12,18 +12,6 @@ specification of each task is in
 [gym/envs/\_\_init\_\_.py](https://github.com/openai/gym/blob/master/gym/envs/__init__.py).
 It's worth browsing through both.
 
-### Algorithmic
-
-These are a variety of algorithmic tasks, such as learning to copy a
-sequence.
-
-``` python
-import gym
-env = gym.make('Copy-v0')
-env.reset()
-env.render()
-```
-
 ### Atari
 
 The Atari environments are a variety of Atari video games. If you didn't
@@ -147,6 +135,12 @@ Learn more here: https://github.com/openai/roboschool
 
 The gym comes prepackaged with many many environments. It's this common API around many environments that makes Gym so great. Here we will list additional environments that do not come prepacked with the gym. Submit another to this list via a pull-request.
 
+### gym-algorithmic
+
+These are a variety of algorithmic tasks, such as learning to copy a sequence, present in Gym prior to Gym 0.20.0.
+
+Learn more here: https://github.com/Rohan138/gym-algorithmic
+
 ### gym-spoof
 
 Spoof, otherwise known as "The 3-coin game", is a multi-agent (2 player), imperfect-information, zero-sum game. 

diff --git a/gym/envs/__init__.py b/gym/envs/__init__.py
@@ -1,52 +1,5 @@
 from gym.envs.registration import registry, register, make, spec
 
-# Algorithmic
-# ----------------------------------------
-
-register(
-    id="Copy-v0",
-    entry_point="gym.envs.algorithmic:CopyEnv",
-    max_episode_steps=200,
-    reward_threshold=25.0,
-)
-
-register(
-    id="RepeatCopy-v0",
-    entry_point="gym.envs.algorithmic:RepeatCopyEnv",
-    max_episode_steps=200,
-    reward_threshold=75.0,
-)
-
-register(
-    id="ReversedAddition-v0",
-    entry_point="gym.envs.algorithmic:ReversedAdditionEnv",
-    kwargs={"rows": 2},
-    max_episode_steps=200,
-    reward_threshold=25.0,
-)
-
-register(
-    id="ReversedAddition3-v0",
-    entry_point="gym.envs.algorithmic:ReversedAdditionEnv",
-    kwargs={"rows": 3},
-    max_episode_steps=200,
-    reward_threshold=25.0,
-)
-
-register(
-    id="DuplicatedInput-v0",
-    entry_point="gym.envs.algorithmic:DuplicatedInputEnv",
-    max_episode_steps=200,
-    reward_threshold=9.0,
-)
-
-register(
-    id="Reverse-v0",
-    entry_point="gym.envs.algorithmic:ReverseEnv",
-    max_episode_steps=200,
-    reward_threshold=25.0,
-)
-
 # Classic
 # ----------------------------------------
 

diff --git a/gym/envs/algorithmic/__init__.py b/gym/envs/algorithmic/__init__.py