first attempt at readind daft df

Author: ym-pett

narwhals/dependencies.py

@@ -85,6 +85,10 @@ def get_dask() -> Any:  # pragma: no cover
     return sys.modules.get("dask", None)
 
 
+def get_daft_dataframe() -> Any:
+    return sys.modules.get("daft.dataframe", None)
+
+
 def get_dask_dataframe() -> Any:
     """Get dask.dataframe module (if already imported - else return None)."""
     return sys.modules.get("dask.dataframe", None)
@@ -244,6 +248,12 @@ def is_cupy_scalar(obj: Any) -> bool:
     )  # pragma: no cover
 
 
+def is_daft_dataframe(df: Any) -> bool:
+    """TODO docstring!"""
+    _warn_if_narwhals_df_or_lf(df)
+    return (daft := get_daft_dataframe()) is not None and isinstance(df, daft.DataFrame)
+
+
 def is_dask_dataframe(df: Any) -> TypeIs[dd.DataFrame]:
     """Check whether `df` is a Dask DataFrame without importing Dask.
 

narwhals/translate.py

@@ -18,6 +18,7 @@
     get_numpy,
     get_pandas,
     is_cupy_scalar,
+    is_daft_dataframe,
     is_dask_dataframe,
     is_duckdb_relation,
     is_ibis_table,
@@ -444,6 +445,14 @@ def _from_native_impl(  # noqa: C901, PLR0911, PLR0912, PLR0915
             .to_narwhals()
         )
 
+    # stripping to simplest form, TODO full sequence
+    if is_daft_dataframe(native_object):
+        return (
+            version.namespace.from_native_object(native_object)
+            .compliant.from_native(native_object)
+            .to_narwhals()
+        )
+
     # Dask
     if is_dask_dataframe(native_object):
         if series_only: