fix(dependencies): update import check for modin.pandas module (#3219)

* update import check for modin.pandas module

* Update narwhals/dependencies.py

Use more specific variable name

Co-authored-by: Dan Redding <[email protected]>

* Update narwhals/dependencies.py

Co-authored-by: Jonathan Shi <[email protected]>

* fix indentation

---------

Co-authored-by: Dan Redding <[email protected]>
Co-authored-by: Jonathan Shi <[email protected]>
Co-authored-by: Francesco Bruzzesi <[email protected]>

Author: 4 people

narwhals/dependencies.py

@@ -56,9 +56,7 @@ def get_pandas() -> Any:
 
 def get_modin() -> Any:  # pragma: no cover
     """Get modin.pandas module (if already imported - else return None)."""
-    if (modin := sys.modules.get("modin", None)) is not None:
-        return modin.pandas
-    return None
+    return sys.modules.get("modin.pandas", None)
 
 
 def get_cudf() -> Any: