Added Pandas Drop Duplicates node. Fixed Pandas Drop NA node to output a DataFrame instead of legacy JSON string.

modules/pandas_wrapper/pandas_drop_duplicates.py

@@ -0,0 +1,39 @@
+from typing import Any, Dict
+import pandas as pd
+
+class PandasDropDuplicates:
+    """
+    Drops duplicate rows from a Pandas DataFrame.
+
+    category: Data cleansing
+    """
+    
+    @classmethod
+    def INPUT_TYPES(cls) -> Dict[str, Any]:
+        """
+        Defines the input types for the function.
+
+        Returns:
+            Dict[str, Any]: A dictionary specifying required input types.
+        """
+        return {
+            "required": {
+                "dataframe": ("DATAFRAME", {})
+            }
+        }
+
+    RETURN_TYPES: tuple = ("DATAFRAME",)
+    FUNCTION: str = "f"
+    CATEGORY: str = "Data Analysis"
+
+    def f(self, dataframe: pd.DataFrame) -> tuple:
+        """
+        Drops duplicate rows from a Pandas DataFrame.
+
+        Args:
+            dataframe (DataFrame): The DataFrame.
+
+        Returns:
+            tuple: A tuple containing the DataFrame.
+        """
+        return (dataframe.drop_duplicates(),)

modules/pandas_wrapper/pandas_dropna.py

@@ -37,4 +37,4 @@ class PandasDropNA:
         Returns:
             tuple: A tuple containing the DataFrame.
         """
-        return (dataframe.dropna().to_json(),)
+        return (dataframe.dropna(),)