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Add default parameters for self.masscart and self.masspole to the constructor in CartPoleEnv #3317

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Add default parameters for self.masscart and self.masspole to the constructor in CartPoleEnv #3317

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6 changes: 3 additions & 3 deletions gym/envs/classic_control/cartpole.py
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Original file line number Diff line number Diff line change
Expand Up @@ -86,10 +86,10 @@ class CartPoleEnv(gym.Env[np.ndarray, Union[int, np.ndarray]]):
"render_fps": 50,
}

def __init__(self, render_mode: Optional[str] = None):
def __init__(self, render_mode: Optional[str] = None, masscart = 1.0, masspole = 0.1):
self.gravity = 9.8
self.masscart = 1.0
self.masspole = 0.1
self.masscart = masscart
self.masspole = masspole
self.total_mass = self.masspole + self.masscart
self.length = 0.5 # actually half the pole's length
self.polemass_length = self.masspole * self.length
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