DEP: Deprecate passing fill_value and freq to shift #54818
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doc/source/whatsnew/v2.1.0.rst
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| @@ -587,6 +587,7 @@ Other Deprecations | |||
| - Deprecated values ``"pad"``, ``"ffill"``, ``"bfill"``, ``"backfill"`` for :meth:`Series.interpolate` and :meth:`DataFrame.interpolate`, use ``obj.ffill()`` or ``obj.bfill()`` instead (:issue:`53581`) | |||
| - Deprecated the behavior of :meth:`Index.argmax`, :meth:`Index.argmin`, :meth:`Series.argmax`, :meth:`Series.argmin` with either all-NAs and ``skipna=True`` or any-NAs and ``skipna=False`` returning -1; in a future version this will raise ``ValueError`` (:issue:`33941`, :issue:`33942`) | |||
| - Deprecated allowing non-keyword arguments in :meth:`DataFrame.to_sql` except ``name`` and ``con`` (:issue:`54229`) | |||
| - Deprecated silently ignoring ``fill_value`` when passing both ``freq`` and ``fill_value`` to :meth:`DataFrame.shift` and :meth:`Series.shift` and :meth:`.DataFrameGroupBy.shift`; in a future version this will raise ``ValueError`` (:issue:`53832`) | |||
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the "and" after DataFrame.shift should just be a comma
| "Cannot pass both 'freq' and 'fill_value' to " | ||
| f"{type(self).__name__}.shift" | ||
| warnings.warn( | ||
| "Passing a 'freq' together with a 'fill_value' silently ignores " |
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can you explicitly say "is deprecated" in here somehwre
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doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.see #53832