Pass a seed to env.seed for MetaWorld envs #260
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Signed-off-by: Fabrice Normandin <normandf@mila.quebec>
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This would cause an error when running the CW10 benchmark, for example, since the
MultiTaskEnvironmentconstructor callsself.seed(seed), which callsself.env.seed(seed). In the case of Mujoco environments created by the MetaWorld benchmark, this isn't good, because there's anassert seed is not Nonein their source code.This was probably caused by the metaworld / mujoco-py dependency not being pinned properly enough. If I find the time, I'll look into this some more.
NOTE: This slightly changes the seeding of the Metaworld environments, which might change the results of some experiments.