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Issue 60723 resolved #60730

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Issue 60723 resolved #60730

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84e0caf
Issue 60723 resolved
BAnSsal Jan 18, 2025
678d307
Merge branch 'main' into Issue_60723
BAnSsal Jan 18, 2025
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8 changes: 6 additions & 2 deletions pandas/core/reshape/concat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -477,18 +477,22 @@ def _sanitize_mixed_ndim(

else:
name = getattr(obj, "name", None)
namenoneflag =False
if ignore_index or name is None:
if axis == 1:
# doing a row-wise concatenation so need everything
# to line up
name = 0
if name is None:
name = 0
namenoneflag =True

else:
# doing a column-wise concatenation so need series
# to have unique names
name = current_column
current_column += 1
obj = sample._constructor(obj, copy=False)
if isinstance(obj, ABCDataFrame):
if isinstance(obj, ABCDataFrame) and namenoneflag:
obj.columns = range(name, name + 1, 1)
else:
obj = sample._constructor({name: obj}, copy=False)
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