8000 BUG: Maintain column order with groupby.nth by reidy-p · Pull Request #22811 · pandas-dev/pandas · GitHub
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BUG: Maintain column order with groupby.nth #22811

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Merged
merged 4 commits into from
Nov 20, 2018
Merged

BUG: Maintain column order with groupby.nth #22811

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bc68c37
BUG: Maintain column order with groupby.nth
reidy-p Sep 23, 2018
351138d
Add optional sort parameter to difference method in subclasses
reidy-p Oct 9, 2018
2e4b31a
add more tests
reidy-p Oct 13, 2018
13a23f7
Merge branch 'master' into PR_TOOL_MERGE_PR_22811
jreback Nov 18, 2018
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Merge branch 'master' into PR_TOOL_MERGE_PR_22811
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@jreback
jreback committed Nov 18, 2018
commit 13a23f7558ccde3710e8786320c28e4d271a7ca9
5 changes: 4 additions & 1 deletion doc/source/whatsnew/v0.24.0.rst
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Expand Up @@ -287,8 +287,11 @@ Other Enhancements
- Compatibility with Matplotlib 3.0 (:issue:`22790`).
- Added :meth:`Interval.overlaps`, :meth:`IntervalArray.overlaps`, and :meth:`IntervalIndex.overlaps` for determining overlaps between interval-like objects (:issue:`21998`)
- :func:`~DataFrame.to_parquet` now supports writing a ``DataFrame`` as a directory of parquet files partitioned by a subset of the columns when ``engine = 'pyarrow'`` (:issue:`23283`)
- :meth:`Timestamp.tz_localize`, :meth:`DatetimeIndex.tz_localize`, and :meth:`Series.tz_localize` have gained the ``nonexistent`` argument for alternative handling of nonexistent times. See :ref:`timeseries.timezone_nonexsistent` (:issue:`8917`)
- :meth:`Timestamp.tz_localize`, :meth:`DatetimeIndex.tz_localize`, and :meth:`Series.tz_localize` have gained the ``nonexistent`` argument for alternative handling of nonexistent times. See :ref:`timeseries.timezone_nonexistent` (:issue:`8917`)
- :meth:`Index.difference` now has an optional ``sort`` parameter to specify whether the results should be sorted if possible (:issue:`17839`)
- :meth:`read_excel()` now accepts ``usecols`` as a list of column names or callable (:issue:`18273`)
- :meth:`MultiIndex.to_flat_index` has been added to flatten multiple levels into a single-level :class:`Index` object.
- :meth:`DataFrame.to_stata` and :class:` pandas.io.stata.StataWriter117` can write mixed sting columns to Stata strl format (:issue:`23633`)

.. _whatsnew_0240.api_breaking:

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1 change: 0 additions & 1 deletion pandas/tests/indexes/multi/test_set_ops.py
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Expand Up @@ -6,7 +6,6 @@
import pandas as pd
import pandas.util.testing as tm
from pandas import MultiIndex, Series
import pytest


@pytest.mark.parametrize("case", [0.5, "xxx"])
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1 change: 0 additions & 1 deletion pandas/tests/indexes/timedeltas/test_timedelta.py
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Expand Up @@ -132,7 +132,6 @@ def test_factorize(self):
tm.assert_numpy_array_equal(arr, exp_arr)
tm.assert_index_equal(idx, idx3)


def test_join_self(self, join_type):
index = timedelta_range('1 day', periods=10)
joined = index.join(index, how=join_type)
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