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Preserve ArrayOfEqualSizedArrays through awkward conversion #209

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Preserve ArrayOfEqualSizedArrays through awkward conversion #209

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bab275e
Preserve ArrayOfEqualSizedArrays through awkward conversion
Yuan-Ru-Lin Jan 22, 2026
1c53840
Add a test for 3D arrays
Yuan-Ru-Lin Jan 22, 2026
c643016
style: pre-commit fixes
pre-commit-ci[bot] Jan 22, 2026
c84e200
Return Array for regular awkward arrays
Yuan-Ru-Lin Jan 24, 2026
9f0b7a6
Merge multiple isinstance check
Yuan-Ru-Lin Jan 24, 2026
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2 changes: 1 addition & 1 deletion src/lgdo/types/table.py
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Original file line number Diff line number Diff line change
Expand Up @@ -634,7 +634,7 @@ def _ak_to_lgdo_or_col_dict(array: ak.Array):

# be smart and just use Array when it makes sense
if (
isinstance(array.type.content, ak.types.NumpyType)
isinstance(array.type.content, (ak.types.NumpyType, ak.types.RegularType))
or array.type.content.parameters.get("__array__") == "string"
):
return Array(array)
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11 changes: 11 additions & 0 deletions tests/types/test_table.py
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,15 @@ def test_ak_array_init():
"b": [[1, 2], [3], [4], [5, 6, 7]],
"c": {"f1": [[], [5], [3, 7, 6], []], "f2": [5, 6, 7, 8]},
"d": ["boh", "hello", "there", "!"],
"e": np.array([[1, 2], [3, 4], [5, 6], [7, 8]]), # 2D RegularType
"f": np.array(
[
[[1, 2], [3, 4]],
[[5, 6], [7, 8]],
[[9, 10], [11, 12]],
[[13, 14], [15, 16]],
]
), # 3D RegularType
}
)
tbl = Table(array)
Expand All @@ -72,6 +81,8 @@ def test_ak_array_init():
assert isinstance(tbl.c, Table)
assert isinstance(tbl.c.f1, lgdo.VectorOfVectors)
assert isinstance(tbl.c.f2, lgdo.Array)
assert isinstance(tbl.e, lgdo.Array)
assert isinstance(tbl.f, lgdo.Array)


def test_ak_array_init_attrs():
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