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Fix an error related to collation and RNN #129

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Mar 3, 2021
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5 changes: 4 additions & 1 deletion pfrl/utils/batch_states.py
Original file line number Diff line number Diff line change
Expand Up @@ -30,4 +30,7 @@ def batch_states(
"""
features = [phi(s) for s in states]
# return concat_examples(features, device=device)
return _to_recursive(default_collate(features), device)
collated_features = default_collate(features)
if isinstance(collated_features, list):
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collated_features = tuple(collated_features)
return _to_recursive(collated_features, device)