Added Pandas at, iat getter and setter nodes.

modules/cda/py_datetime_to_string.py

@@ -0,0 +1,43 @@
+from typing import Any, Dict
+from datetime import datetime
+
+class PyDatetimeToString:
+    """
+    Converts a Python datetime.datetime value to a Python string
+
+    Refer to [the Python documentation](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-behavior) for date/time format strings.
+
+    category: Python wrapper
+    """
+    
+    @classmethod
+    def INPUT_TYPES(cls) -> Dict[str, Any]:
+        """
+        Defines the input types for the `create` function.
+
+        Returns:
+            Dict[str, Any]: A dictionary specifying required input types.
+        """
+        return {
+            "required": {
+                "value": ("PYDATETIME", {}),
+                "date_format": ("STRING", {"default":"%Y-%m-%d %H:%M:%S", "multiline": False}),
+            }
+        }
+
+    RETURN_TYPES: tuple = ("STRING",)
+    FUNCTION: str = "f"
+    CATEGORY: str = "Data Analysis"
+
+    def f(self, value: datetime, date_format: str) -> tuple:
+        """
+        Converts a Python datetime.datetime value to a Python string
+
+        Args:
+            value (str): String value to convert.
+
+        Returns:
+            tuple: A tuple containing the converted value.
+        """
+        return (datetime.strftime(value, date_format),)
+