REGR: find_stack_level reverts (#44753)

Author: rhshadrach

pandas/core/arrays/categorical.py

@@ -940,7 +940,7 @@ def set_categories(
                 "a future version. Removing unused categories will always "
                 "return a new Categorical object.",
                 FutureWarning,
-                stacklevel=find_stack_level(),
+                stacklevel=2,
             )
         else:
             inplace = False

pandas/core/indexes/base.py

@@ -7016,7 +7016,7 @@ def _maybe_cast_data_without_dtype(
             "In a future version, the Index constructor will not infer numeric "
             "dtypes when passed object-dtype sequences (matching Series behavior)",
             FutureWarning,
-            stacklevel=find_stack_level(),
+            stacklevel=3,
         )
     if result.dtype.kind in ["b", "c"]:
         return subarr

pandas/tests/frame/indexing/test_setitem.py

@@ -947,7 +947,7 @@ def test_setitem_mask_categorical(self):
         df = DataFrame({"cats": catsf, "values": valuesf}, index=idxf)
 
         exp_fancy = exp_multi_row.copy()
-        with tm.assert_produces_warning(FutureWarning):
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
             # issue #37643 inplace kwarg deprecated
             return_value = exp_fancy["cats"].cat.set_categories(
                 ["a", "b", "c"], inplace=True

pandas/tests/series/accessors/test_cat_accessor.py

@@ -51,7 +51,7 @@ def test_cat_accessor(self):
 
         exp = Categorical(["a", "b", np.nan, "a"], categories=["b", "a"])
 
-        with tm.assert_produces_warning(FutureWarning):
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
             # issue #37643 inplace kwarg deprecated
             return_value = ser.cat.set_categories(["b", "a"], inplace=True)