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ERR: FutureWarning difficult to identify source #26431

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Merged
merged 2 commits into from
May 18, 2019
Merged

ERR: FutureWarning difficult to identify source #26431

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f5a63f5
FutureWarning difficult to identify source
simonjayhawkins May 16, 2019
1b3bdbf
remove whatsnew. not needed.
simonjayhawkins May 17, 2019
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3 changes: 2 additions & 1 deletion pandas/core/indexes/datetimes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -689,7 +689,8 @@ def to_series(self, keep_tz=None, index=None, name=None):
name = self.name

if keep_tz is None and self.tz is not None:
warnings.warn("The default of the 'keep_tz' keyword will change "
warnings.warn("The default of the 'keep_tz' keyword in "
"DatetimeIndex.to_series will change "
"to True in a future release. You can set "
"'keep_tz=True' to obtain the future behaviour and "
"silence this warning.", FutureWarning, stacklevel=2)
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6 changes: 5 additions & 1 deletion pandas/tests/frame/test_alter_axes.py
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Expand Up @@ -460,9 +460,13 @@ def test_convert_dti_to_series(self):
name='B')
tm.assert_series_equal(result, comp)

with tm.assert_produces_warning(FutureWarning):
with tm.assert_produces_warning(FutureWarning) as m:
result = idx.to_series(index=[0, 1])
tm.assert_series_equal(result, expected.dt.tz_convert(None))
msg = ("The default of the 'keep_tz' keyword in "
"DatetimeIndex.to_series will change to True in a future "
"release.")
assert msg in str(m[0].message)

with tm.assert_produces_warning(FutureWarning):
result = idx.to_series(keep_tz=False, index=[0, 1])
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