BUG: Fix sort_values for empty by argument #40324
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dsaxton
commented
Mar 9, 2021
dsaxton
commented
- closes BUG: df.sort_values(by=[]) fails with IndexError #40258
- tests added / passed
- Ensure all linting tests pass, see here for how to run them
- whatsnew entry
dsaxton
added
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jreback
requested changes
Mar 9, 2021
pandas/core/frame.py
Outdated
| k, kind=kind, ascending=ascending, na_position=na_position, key=key | ||
| ) | ||
| else: | ||
| return self |
| with pytest.raises(ValueError, match=msg): | ||
| frame.sort_values(by=["A", "B"], axis=0, ascending=[True] * 5) | ||
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| # https://github.com/pandas-dev/pandas/issues/40258 |
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can you add a separate test. also assert that it is not the same frame.
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can you make a completely separate test
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we dont' normally want to mix error checking with other things
jreback
reviewed
Mar 9, 2021
doc/source/whatsnew/v1.2.4.rst
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| ~~~~~~~~~ | ||
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| - | ||
| - Fixed bug in :meth:`DataFrame.sort_values` raising an :class:`IndexError` for empty ``by`` (:issue:`40258`) |
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move to 1.3, this is an expansion not a regression.
| with pytest.raises(ValueError, match=msg): | ||
| frame.sort_values(by=["A", "B"], axis=0, ascending=[True] * 5) | ||
|
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| # https://github.com/pandas-dev/pandas/issues/40258 |
There was a problem hiding this comment.
can you make a completely separate test
| with pytest.raises(ValueError, match=msg): | ||
| frame.sort_values(by=["A", "B"], axis=0, ascending=[True] * 5) | ||
|
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| # https://github.com/pandas-dev/pandas/issues/40258 |
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we dont' normally want to mix error checking with other things
jreback
approved these changes
Mar 9, 2021
|
thanks @dsaxton |
jbrockmendel
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Mar 11, 2021
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