8000 BUG: #19497 FIX. Add tupleize_cols option to internals._transform_index() by charlie0389 · Pull Request #20526 · pandas-dev/pandas · GitHub
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BUG: #19497 FIX. Add tupleize_cols option to internals._transform_index() #20526

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BUG: #19497 FIX. Add tupleize_cols option to internals._transform_index() #20526

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37ceb5d
BUG: #19497 fix.
charlie0389 Mar 29, 2018
db9f6c5
DOC: Include documentation in response to bug #19497 fix.
charlie0389 Mar 29, 2018
f79b82d
Formatting changes to pass flake8 tests.
charlie0389 Mar 29, 2018
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Formatting changes to pass flake8 tests.
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@charlie0389
charlie0389 committed Mar 29, 2018
commit f79b82d26c55aab92161656c2ca8ec35f02e2b17
6 changes: 4 additions & 2 deletions pandas/core/generic.py
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Expand Up @@ -971,8 +971,10 @@ def f(x):
baxis = self._get_block_manager_axis(axis)
if level is not None:
level = self.axes[axis]._get_level_number(level)
result._data = result._data.rename_axis(f, axis=baxis, copy=copy,
level=level, tupleize_cols=tupleize_cols)
result._data = \
result._data.rename_axis(f, axis=baxis, copy=copy,
level=level,
tupleize_cols=tupleize_cols)
result._clear_item_cache()

if inplace:
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3 changes: 2 additions & 1 deletion pandas/core/internals.py
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Expand Up @@ -3294,7 +3294,8 @@ def rename_axis(self, mapper, axis, copy=True, level=None,

"""
obj = self.copy(deep=copy)
obj.set_axis(axis, _transform_index(self.axes[axis], mapper, level, tupleize_cols=tupleize_cols))
obj.set_axis(axis, _transform_index(self.axes[axis], mapper, level,
tupleize_cols=tupleize_cols))
return obj

def add_prefix(self, prefix):
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