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pythoncopyopenai-gym

How to copy gym environment?

Info: I am using OpenAI Gym to create RL environments but need multiple copies of an environment for something I am doing. I do not want to do anything like [gym.make(...) for i in range(2)] to make a new environment.

Question: Given one gym env what is the best way to make a copy of it so that you have 2 duplicate but disconnected envs?

Here is an example:

import gym

env = gym.make("CartPole-v0")
new_env = # NEED COPY OF ENV HERE

env.reset() # Should not alter new_env
Solution

  • Astariul has an updated answer::

    Their answer states:

    import copy 
env_2 = copy.deepcopy(env)

    For more info about 'copy.deepcopy', and the copy library

    Link to copy library documentation