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[Doc] Fix tutorials for release #2476

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Oct 9, 2024
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[Doc] Fix tutorials for release #2476

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15 changes: 9 additions & 6 deletions tutorials/sphinx-tutorials/torchrl_demo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -365,7 +365,7 @@
# Envs
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

from torchrl.envs.libs.gym import GymEnv, GymWrapper
from torchrl.envs.libs.gym import GymEnv, GymWrapper, set_gym_backend

gym_env = gym.make("Pendulum-v1")
env = GymWrapper(gym_env)
Expand Down Expand Up @@ -434,9 +434,16 @@

from torchrl.envs import ParallelEnv


def make_env():
# You can control whether to use gym or gymnasium for your env
with set_gym_backend("gym"):
return GymEnv("Pendulum-v1", frame_skip=3, from_pixels=True, pixels_only=False)


base_env = ParallelEnv(
4,
lambda: GymEnv("Pendulum-v1", frame_skip=3, from_pixels=True, pixels_only=False),
make_env,
mp_start_method="fork", # This will break on Windows machines! Remove and decorate with if __name__ == "__main__"
)
env = TransformedEnv(
Expand Down Expand Up @@ -656,10 +663,6 @@ def exec_sequence(params, data):
td_module(td)
print("mode:", td["action"])

with set_exploration_type(ExplorationType.MODE):
td_module(td)
print("mean:", td["action"])

###############################################################################
# Using Environments and Modules
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Expand Down
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