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BUG: SparseSeries constructor ignores input data name #10258

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Jun 3, 2015
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BUG: SparseSeries constructor ignores input data name #10258

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2 changes: 1 addition & 1 deletion doc/source/whatsnew/v0.16.2.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,6 @@ Bug Fixes


- Bug in GroupBy.get_group raises ValueError when group key contains NaT (:issue:`6992`)

- Bug in ``SparseSeries`` constructor ignores input data name (:issue:`10258`)

- Bug where infer_freq infers timerule (WOM-5XXX) unsupported by to_offset (:issue:`9425`)
3 changes: 3 additions & 0 deletions pandas/sparse/series.py
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Expand Up @@ -121,6 +121,9 @@ def __init__(self, data=None, index=None, sparse_index=None, kind='block',
if data is None:
data = []

if isinstance(data, Series) and name is None:
name = data.name

is_sparse_array = isinstance(data, SparseArray)
if fill_value is None:
if is_sparse_array:
Expand Down
30 changes: 20 additions & 10 deletions pandas/sparse/tests/test_sparse.py
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Expand Up @@ -128,22 +128,23 @@ def setUp(self):

date_index = bdate_range('1/1/2011', periods=len(index))

self.bseries = SparseSeries(arr, index=index, kind='block')
self.bseries.name = 'bseries'
self.bseries = SparseSeries(arr, index=index, kind='block',
name='bseries')

self.ts = self.bseries

self.btseries = SparseSeries(arr, index=date_index, kind='block')

self.iseries = SparseSeries(arr, index=index, kind='integer')
self.iseries = SparseSeries(arr, index=index, kind='integer',
name='iseries')

arr, index = _test_data2()
self.bseries2 = SparseSeries(arr, index=index, kind='block')
self.iseries2 = SparseSeries(arr, index=index, kind='integer')

arr, index = _test_data1_zero()
self.zbseries = SparseSeries(arr, index=index, kind='block',
fill_value=0)
fill_value=0, name='zbseries')
self.ziseries = SparseSeries(arr, index=index, kind='integer',
fill_value=0)

Expand Down Expand Up @@ -234,12 +235,21 @@ def test_constructor(self):
self.bseries.to_dense().fillna(0).values)

# pass SparseSeries
s2 = SparseSeries(self.bseries)
s3 = SparseSeries(self.iseries)
s4 = SparseSeries(self.zbseries)
assert_sp_series_equal(s2, self.bseries)
assert_sp_series_equal(s3, self.iseries)
assert_sp_series_equal(s4, self.zbseries)
def _check_const(sparse, name):
# use passed series name
result = SparseSeries(sparse)
assert_sp_series_equal(result, sparse)
self.assertEqual(sparse.name, name)
self.assertEqual(result.name, name)

# use passed name
result = SparseSeries(sparse, name='x')
assert_sp_series_equal(result, sparse)
self.assertEqual(result.name, 'x')

_check_const(self.bseries, 'bseries')
_check_const(self.iseries, 'iseries')
_check_const(self.zbseries, 'zbseries')

# Sparse time series works
date_index = bdate_range('1/1/2000', periods=len(self.bseries))
Expand Down