Stacklevel argument updated #46687

pandas/core/generic.py

@@ -10973,7 +10973,6 @@ def _add_numeric_operations(cls):
         @deprecate_nonkeyword_arguments(
             version=None,
             allowed_args=["self"],
-            stacklevel=find_stack_level() - 1,
             name="DataFrame.any and Series.any",
         )
         @doc(

pandas/io/json/_json.py

@@ -318,9 +318,7 @@ def obj_to_write(self) -> NDFrame | Mapping[IndexLabel, Any]:
     decompression_options=_shared_docs["decompression_options"] % "path_or_buf",
 )
 @deprecate_kwarg(old_arg_name="numpy", new_arg_name=None)
-@deprecate_nonkeyword_arguments(
-    version="2.0", allowed_args=["path_or_buf"], stacklevel=3
-)
+@deprecate_nonkeyword_arguments(version="2.0", allowed_args=["path_or_buf"])
 def read_json(
     path_or_buf=None,
     orient=None,

pandas/io/parsers/readers.py

@@ -1166,9 +1166,7 @@ def read_table(
     ...
 
 
-@deprecate_nonkeyword_arguments(
-    version=None, allowed_args=["filepath_or_buffer"], stacklevel=3
-)
+@deprecate_nonkeyword_arguments(version=None, allowed_args=["filepath_or_buffer"])
 @Appender(
     _doc_read_csv_and_table.format(
         func_name="read_table",
@@ -1265,9 +1263,7 @@ def read_table(
     return _read(filepath_or_buffer, kwds)
 
 
-@deprecate_nonkeyword_arguments(
-    version=None, allowed_args=["filepath_or_buffer"], stacklevel=2
-)
+@deprecate_nonkeyword_arguments(version=None, allowed_args=["filepath_or_buffer"])
 def read_fwf(
     filepath_or_buffer: FilePath | ReadCsvBuffer[bytes] | ReadCsvBuffer[str],
     colspecs: Sequence[tuple[int, int]] | str | None = "infer",

pandas/io/sas/sasreader.py

@@ -78,9 +78,7 @@ def read_sas(
     ...
 
 
-@deprecate_nonkeyword_arguments(
-    version=None, allowed_args=["filepath_or_buffer"], stacklevel=2
-)
+@deprecate_nonkeyword_arguments(version=None, allowed_args=["filepath_or_buffer"])
 @doc(decompression_options=_shared_docs["decompression_options"])
 def read_sas(
     filepath_or_buffer: FilePath | ReadBuffer[bytes],

pandas/io/xml.py

@@ -974,9 +974,7 @@ def _parse(
     )
 
 
-@deprecate_nonkeyword_arguments(
-    version=None, allowed_args=["path_or_buffer"], stacklevel=2
-)
+@deprecate_nonkeyword_arguments(version=None, allowed_args=["path_or_buffer"])
 @doc(
     storage_options=_shared_docs["storage_options"],
     decompression_options=_shared_docs["decompression_options"] % "path_or_buffer",

pandas/tests/io/parser/common/test_common_basic.py

@@ -920,5 +920,4 @@ def test_read_table_posargs_deprecation(all_parsers):
         "In a future version of pandas all arguments of read_table "
         "except for the argument 'filepath_or_buffer' will be keyword-only"
     )
-    with tm.assert_produces_warning(FutureWarning, match=msg):
-        parser.read_table(data, " ")
+    parser.read_table_check_warnings(FutureWarning, msg, data, " ")

pandas/tests/io/parser/conftest.py

@@ -42,6 +42,16 @@ def read_table(self, *args, **kwargs):
         kwargs = self.update_kwargs(kwargs)
         return read_table(*args, **kwargs)
 
+    def read_table_check_warnings(
+        self, warn_type: type[Warning], warn_msg: str, *args, **kwargs
+    ):
+        # We need to check the stacklevel here instead of in the tests
+        # since this is where read_table is called and where the warning
+        # should point to.
+        kwargs = self.update_kwargs(kwargs)
+        with tm.assert_produces_warning(warn_type, match=warn_msg):
+            return read_table(*args, **kwargs)
+
 
 class CParser(BaseParser):
     engine = "c"

pandas/util/_decorators.py

@@ -13,6 +13,7 @@
 
 from pandas._libs.properties import cache_readonly  # noqa:F401
 from pandas._typing import F
+from pandas.util._exceptions import find_stack_level
 
 
 def deprecate(
@@ -260,7 +261,6 @@ def future_version_msg(version: str | None) -> str:
 def deprecate_nonkeyword_arguments(
     version: str | None,
     allowed_args: list[str] | None = None,
-    stacklevel: int = 2,
     name: str | None = None,
 ) -> Callable[[F], F]:
     """
@@ -280,9 +280,6 @@ def deprecate_nonkeyword_arguments(
         defaults to list of all arguments not having the
         default value.
 
-    stacklevel : int, default=2
-        The stack level for warnings.warn
-
     name : str, optional
         The specific name of the function to show in the warning
         message. If None, then the Qualified name of the function
@@ -312,7 +309,7 @@ def wrapper(*args, **kwargs):
                 warnings.warn(
                     msg.format(arguments=arguments),
                     FutureWarning,
-                    stacklevel=stacklevel,
+                    stacklevel=find_stack_level(),
                 )
             return func(*args, **kwargs)