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[BugFix] Defer filter_warnings import to avoid module load issues #3270

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Merged
vmoens merged 2 commits into from
Dec 31, 2025
Merged

[BugFix] Defer filter_warnings import to avoid module load issues #3270

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f0d3546
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vmoens Dec 31, 2025
df03691
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vmoens Dec 31, 2025
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8 changes: 7 additions & 1 deletion torchrl/envs/batched_envs.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1477,6 +1477,7 @@ def look_for_cuda(tensor, has_cuda=has_cuda):
env_fun = self.create_env_fn[idx]
if not isinstance(env_fun, (EnvCreator, CloudpickleWrapper)):
env_fun = CloudpickleWrapper(env_fun)

kwargs[idx].update(
{
"parent_pipe": parent_pipe,
Expand All @@ -1486,7 +1487,7 @@ def look_for_cuda(tensor, has_cuda=has_cuda):
"has_lazy_inputs": self.has_lazy_inputs,
"num_threads": num_sub_threads,
"non_blocking": self.non_blocking,
"filter_warnings": torchrl.filter_warnings_subprocess,
"filter_warnings": self._filter_warnings_subprocess(),
}
)
if self._use_buffers:
Expand Down Expand Up @@ -1522,6 +1523,11 @@ def look_for_cuda(tensor, has_cuda=has_cuda):
self.is_closed = False
self.set_spec_lock_()

def _filter_warnings_subprocess(self) -> bool:
from torchrl import filter_warnings_subprocess

return filter_warnings_subprocess

@_check_start
def state_dict(self) -> OrderedDict:
state_dict = OrderedDict()
Expand Down
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