SNOW-1461192: Fix StringMethods and DatetimeProperties docs

src/snowflake/snowpark/modin/plugin/__init__.py

@@ -64,6 +64,22 @@
 DocModule.put(docstrings.__name__)
 
 
+# We cannot call ModinDocModule.put directly because it will produce a call to `importlib.reload`
+# that will overwrite our extensions. We instead directly call the _inherit_docstrings annotation
+# See https://github.com/modin-project/modin/issues/7122
+import modin.utils  # type: ignore[import]  # isort: skip  # noqa: E402
+import modin.pandas.series_utils  # type: ignore[import]  # isort: skip  # noqa: E402
+
+modin.utils._inherit_docstrings(
+    docstrings.series_utils.StringMethods,
+    overwrite_existing=True,
+)(modin.pandas.series_utils.StringMethods)
+
+modin.utils._inherit_docstrings(
+    docstrings.series_utils.CombinedDatetimelikeProperties,
+    overwrite_existing=True,
+)(modin.pandas.series_utils.DatetimeProperties)
+
 # Don't warn the user about our internal usage of private preview pivot
 # features. The user should have already been warned that Snowpark pandas
 # is in public or private preview. They likely don't know or care that we are

tests/unit/modin/test_docstrings.py

@@ -3,9 +3,32 @@
 #
 
 import modin.pandas as pd
+import pandas as native_pd
 
-import snowflake.snowpark.modin.plugin  # noqa: F401
+import snowflake.snowpark.modin.plugin as plugin
 
 
 def test_base_property_snow_1305329():
     assert "Snowpark pandas" in pd.base.BasePandasDataset.iloc.__doc__
+
+
+def test_series_utils_snow_1461192():
+    # Checks that StringMethods and DatetimeProperties correctly inherit documentation
+    # Series.dt.date differs from pandas because we don't support DatetimeIndex
+    assert (
+        pd.series_utils.DatetimeProperties.date.__doc__
+        != native_pd.core.indexes.accessors.DatetimeProperties.date.__doc__
+    )
+    assert (
+        pd.series_utils.DatetimeProperties.date.__doc__
+        == plugin.docstrings.CombinedDatetimelikeProperties.date.__doc__
+    )
+    # Series.str.split differs from pandas because we don't yet support the `regex` arg
+    assert (
+        pd.series_utils.StringMethods.split.__doc__
+        != native_pd.core.strings.accessor.StringMethods.split.__doc__
+    )
+    assert (
+        pd.series_utils.StringMethods.split.__doc__
+        == plugin.docstrings.StringMethods.split.__doc__
+    )