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BUG: Fix convert_dtypes for all na column and arrow backend #55346

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Merged
mroeschke merged 5 commits into from
Oct 2, 2023
Merged

BUG: Fix convert_dtypes for all na column and arrow backend #55346

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3430e35
BUG: Fix convert_dtypes for all na column and arrow backend
phofl Oct 1, 2023
f16bacf
Add test
phofl Oct 1, 2023
1c37e08
Update cast.py
phofl Oct 1, 2023
66cb2ea
Fix
phofl Oct 1, 2023
3bbf6a6
Fix typing
phofl Oct 1, 2023
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Update cast.py
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@phofl
phofl authored Oct 1, 2023
commit 1c37e08d1c13161fb523eb8006b60123e58c99ee
2 changes: 1 addition & 1 deletion pandas/core/dtypes/cast.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1133,7 +1133,7 @@ def convert_dtypes(
base_dtype = np.dtype(str)
else:
base_dtype = inferred_dtype
if base_dtype.kind == "O" and isna(input_array).all():
if base_dtype.kind == "O" and len(input_array) > 0 and isna(input_array).all():
import pyarrow as pa

pa_type = pa.null()
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