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[BugFix] Fix empty tuple index #811

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merged 1 commit into from
Jun 11, 2024
Merged

[BugFix] Fix empty tuple index #811

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5 changes: 4 additions & 1 deletion tensordict/_lazy.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1661,7 +1661,10 @@ def assign(converted_idx, value=value):
assign(item)
else:
stack_item, idx = item
self.tensordicts[stack_item][idx] = value[i]
if idx == ():
self.tensordicts[stack_item] = value[i]
else:
self.tensordicts[stack_item][idx] = value[i]

assign(converted_idx)
return self
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2 changes: 1 addition & 1 deletion tensordict/base.py
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Expand Up @@ -290,7 +290,7 @@ def __contains__(self, key: NestedKey) -> bool:
"key must be a NestedKey (a str or a possibly tuple of str)."
)

def __getitem__(self, index: IndexType) -> T:
def __getitem__(self, index: IndexType) -> T | torch.Tensor:
"""Indexes all tensors according to the provided index.

The index can be a (nested) key or any valid shape index given the
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