ENH: add consortium standard entrypoint

pandas/core/frame.py

@@ -932,6 +932,21 @@ def __dataframe__(
 
         return PandasDataFrameXchg(self, nan_as_null, allow_copy)
 
+    def __dataframe_consortium_standard__(
+        self, *, api_version: str | None = None
+    ) -> Any:
+        """
+        Provide entry point to the Consortium DataFrame Standard API.
+
+        This is developed and maintained outside of pandas.
+        Please report any issues to https://github.com/data-apis/dataframe-api-compat.
+        """
+        dataframe_api_compat = import_optional_dependency("dataframe_api_compat")
+        convert_to_standard_compliant_dataframe = (
+            dataframe_api_compat.pandas_standard.convert_to_standard_compliant_dataframe
+        )
+        return convert_to_standard_compliant_dataframe(self, api_version=api_version)
+
     # ----------------------------------------------------------------------
 
     @property

pandas/core/series.py

@@ -39,6 +39,7 @@
 from pandas._libs.lib import is_range_indexer
 from pandas.compat import PYPY
 from pandas.compat._constants import REF_COUNT
+from pandas.compat._optional import import_optional_dependency
 from pandas.compat.numpy import function as nv
 from pandas.errors import (
     ChainedAssignmentError,
@@ -955,6 +956,22 @@ def __array__(self, dtype: npt.DTypeLike | None = None) -> np.ndarray:
             arr.flags.writeable = False
         return arr
 
+    # ----------------------------------------------------------------------
+
+    def __column_consortium_standard__(self, *, api_version: str | None = None) -> Any:
+        """
+        Provide entry point to the Consortium DataFrame Standard API.
+
+        This is developed and maintained outside of pandas.
+        Please report any issues to https://github.com/data-apis/dataframe-api-compat.
+        """
+        dataframe_api_compat = import_optional_dependency("dataframe_api_compat")
+        return (
+            dataframe_api_compat.pandas_standard.convert_to_standard_compliant_column(
+                self, api_version=api_version
+            )
+        )
+
     # ----------------------------------------------------------------------
     # Unary Methods