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BUG: fix DataFrame.__setitem__ with 2D object arrays #63184

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BUG: fix DataFrame.__setitem__ with 2D object arrays #63184

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65df683
proposed fix for issue #61026
akkik04 Nov 23, 2025
8a8c670
applied linting
akkik04 Nov 24, 2025
62f7c4b
documenting my changes
akkik04 Nov 24, 2025
aa707b1
fix comment error
akkik04 Nov 24, 2025
c5c8953
fixing pyarrow errors in control flow logic
akkik04 Nov 24, 2025
78f8ce7
new fix
akkik04 Nov 24, 2025
e2ad3fb
trying new patch location and logic & revamped test infra
akkik04 Nov 24, 2025
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fix comment error
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@akkik04
akkik04 committed Nov 24, 2025
commit aa707b1ce3d8d7201883134125afd4b605748504
2 changes: 1 addition & 1 deletion pandas/core/construction.py
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Original file line number Diff line number Diff line change
Expand Up @@ -617,7 +617,7 @@ def sanitize_array(
# allow assigning a (n, 1) object array to a single column.
data = data[:, 0]
elif data.ndim == 2:
# more than 1 column, now allowed.
# more than 1 column, not allowed.
raise ValueError(
"Setting a DataFrame column with a 2D object array "
f"requires shape (n, 1); got shape {data.shape}."
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