DEPR: enforce deprecations for kwargs in factorize, FrozenNDArray.ser…

doc/source/whatsnew/v1.0.0.rst

@@ -280,6 +280,10 @@ or ``matplotlib.Axes.plot``. See :ref:`plotting.formatters` for more.
 - Removed the previously deprecated ``assert_raises_regex`` function in ``pandas.util.testing`` (:issue:`29174`)
 - Removed :meth:`Index.is_lexsorted_for_tuple` (:issue:`29305`)
 - Removed support for nexted renaming in :meth:`DataFrame.aggregate`, :meth:`Series.aggregate`, :meth:`DataFrameGroupBy.aggregate`, :meth:`SeriesGroupBy.aggregate`, :meth:`Rolling.aggregate` (:issue:`29608`)
+- Removed previously deprecated "order" argument from :func:`factorize` (:issue:`19751`)
+- Removed previously deprecated "v" argument from :meth:`FrozenNDarray.searchsorted`, use "value" instead (:issue:`22672`)
+- Removed previously deprecated "raise_conflict" argument from :meth:`DataFrame.update`, use "errors" instead (:issue:`23585`)
+- Removed previously deprecated keyword "n" from :meth:`DatetimeIndex.shift`, :meth:`TimedeltaIndex.shift`, :meth:`PeriodIndex.shift`, use "periods" instead (:issue:`22458`)
 -
 
 .. _whatsnew_1000.performance:

pandas/core/algorithms.py

@@ -10,7 +10,7 @@
 
 from pandas._libs import Timestamp, algos, hashtable as htable, lib
 from pandas._libs.tslib import iNaT
-from pandas.util._decorators import Appender, Substitution, deprecate_kwarg
+from pandas.util._decorators import Appender, Substitution
 
 from pandas.core.dtypes.cast import (
     construct_1d_object_array_from_listlike,
@@ -494,7 +494,7 @@ def _factorize_array(
 
     Parameters
     ----------
-    %(values)s%(sort)s%(order)s
+    %(values)s%(sort)s
     na_sentinel : int, default -1
         Value to mark "not found".
     %(size_hint)s\
@@ -585,14 +585,6 @@ def _factorize_array(
         coerced to ndarrays before factorization.
     """
     ),
-    order=dedent(
-        """\
-    order : None
-        .. deprecated:: 0.23.0
-
-           This parameter has no effect and is deprecated.
-    """
-    ),
     sort=dedent(
         """\
     sort : bool, default False
@@ -608,13 +600,8 @@ def _factorize_array(
     ),
 )
 @Appender(_shared_docs["factorize"])
-@deprecate_kwarg(old_arg_name="order", new_arg_name=None)
 def factorize(
-    values,
-    sort: bool = False,
-    order=None,
-    na_sentinel: int = -1,
-    size_hint: Optional[int] = None,
+    values, sort: bool = False, na_sentinel: int = -1, size_hint: Optional[int] = None,
 ) -> Tuple[np.ndarray, Union[np.ndarray, ABCIndex]]:
     # Implementation notes: This method is responsible for 3 things
     # 1.) coercing data to array-like (ndarray, Index, extension array)

pandas/core/frame.py

@@ -5528,11 +5528,6 @@ def combiner(x, y):
 
         return self.combine(other, combiner, overwrite=False)
 
-    @deprecate_kwarg(
-        old_arg_name="raise_conflict",
-        new_arg_name="errors",
-        mapping={False: "ignore", True: "raise"},
-    )
     def update(
         self, other, join="left", overwrite=True, filter_func=None, errors="ignore"
     ):

pandas/core/indexes/datetimelike.py

@@ -11,7 +11,7 @@
 from pandas._libs.algos import unique_deltas
 from pandas.compat.numpy import function as nv
 from pandas.errors import AbstractMethodError
-from pandas.util._decorators import Appender, cache_readonly, deprecate_kwarg
+from pandas.util._decorators import Appender, cache_readonly
 
 from pandas.core.dtypes.common import (
     ensure_int64,
@@ -732,8 +732,7 @@ def astype(self, dtype, copy=True):
         #  _data.astype call above
         return Index(new_values, dtype=new_values.dtype, name=self.name, copy=False)
 
-    @deprecate_kwarg(old_arg_name="n", new_arg_name="periods")
-    def shift(self, periods, freq=None):
+    def shift(self, periods=1, freq=None):
         """
         Shift index by desired number of time frequency increments.
 
@@ -742,7 +741,7 @@ def shift(self, periods, freq=None):
 
         Parameters
         ----------
-        periods : int
+        periods : int, default 1
             Number of periods (or increments) to shift by,
             can be positive or negative.
 

pandas/core/indexes/frozen.py

@@ -11,8 +11,6 @@
 
 import numpy as np
 
-from pandas.util._decorators import deprecate_kwarg
-
 from pandas.core.dtypes.cast import coerce_indexer_dtype
 
 from pandas.core.base import PandasObject
@@ -155,7 +153,6 @@ def __repr__(self) -> str:
         prepr = pprint_thing(self, escape_chars=("\t", "\r", "\n"), quote_strings=True)
         return f"{type(self).__name__}({prepr}, dtype='{self.dtype}')"
 
-    @deprecate_kwarg(old_arg_name="v", new_arg_name="value")
     def searchsorted(self, value, side="left", sorter=None):
         """
         Find indices to insert `value` so as to maintain order.

pandas/tests/frame/test_combine_concat.py

@@ -369,13 +369,6 @@ def test_update_raise_on_overlap(self):
         with pytest.raises(ValueError, match="Data overlaps"):
             df.update(other, errors="raise")
 
-    @pytest.mark.parametrize("raise_conflict", [True, False])
-    def test_update_deprecation(self, raise_conflict):
-        df = DataFrame([[1.5, 1, 3.0]])
-        other = DataFrame()
-        with tm.assert_produces_warning(FutureWarning):
-            df.update(other, raise_conflict=raise_conflict)
-
     def test_update_from_non_df(self):
         d = {"a": Series([1, 2, 3, 4]), "b": Series([5, 6, 7, 8])}
         df = DataFrame(d)

pandas/tests/indexes/datetimes/test_ops.py

@@ -549,8 +549,6 @@ def test_shift_periods(self):
         idx = pd.date_range(start=START, end=END, periods=3)
         tm.assert_index_equal(idx.shift(periods=0), idx)
         tm.assert_index_equal(idx.shift(0), idx)
-        with tm.assert_produces_warning(FutureWarning, check_stacklevel=True):
-            tm.assert_index_equal(idx.shift(n=0), idx)
 
     def test_pickle_unpickle(self):
         unpickled = tm.round_trip_pickle(self.rng)

pandas/tests/indexes/period/test_arithmetic.py

@@ -117,5 +117,3 @@ def test_shift_periods(self):
         idx = period_range(freq="A", start="1/1/2001", end="12/1/2009")
         tm.assert_index_equal(idx.shift(periods=0), idx)
         tm.assert_index_equal(idx.shift(0), idx)
-        with tm.assert_produces_warning(FutureWarning, check_stacklevel=True):
-            tm.assert_index_equal(idx.shift(n=0), idx)

pandas/tests/indexes/test_frozen.py

@@ -112,5 +112,4 @@ def test_searchsorted(self):
         expected = 2
         assert self.container.searchsorted(7) == expected
 
-        with tm.assert_produces_warning(FutureWarning):
-            assert self.container.searchsorted(v=7) == expected
+        assert self.container.searchsorted(value=7) == expected

pandas/tests/test_algos.py

@@ -256,7 +256,7 @@ def test_deprecate_order(self):
         # gh 19727 - check warning is raised for deprecated keyword, order.
         # Test not valid once order keyword is removed.
         data = np.array([2 ** 63, 1, 2 ** 63], dtype=np.uint64)
-        with tm.assert_produces_warning(expected_warning=FutureWarning):
+        with pytest.raises(TypeError, match="got an unexpected keyword"):
             algos.factorize(data, order=True)
         with tm.assert_produces_warning(False):
             algos.factorize(data)