Added PandasExcelFileSheetName and PyListToString nodes as well fixing ShowText.js. Added dependency on lxml to address broken html node without lxml

modules/cda/py_list_to_string.py

@@ -0,0 +1,39 @@
+from typing import Any, Dict, List
+
+class PyListToString:
+    """
+    Converts a Python list value to a Python string
+
+    category: Python wrapper
+    """
+    
+    @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": {
+                "value": ("PYLIST", {})
+            }
+        }
+
+    RETURN_TYPES: tuple = ("STRING",)
+    FUNCTION: str = "f"
+    CATEGORY: str = "Data Analysis"
+
+    def f(self, value: List) -> tuple:
+        """
+        Converts a Python list value to a Python string
+
+        Args:
+            value (list): List value to convert.
+
+        Returns:
+            tuple: A tuple containing the converted value.
+        """
+        return (str(value),)
+    

modules/pandas_wrapper/pandas_excel_file_sheet_names.py

@@ -0,0 +1,51 @@
+from typing import Any, Dict
+import pandas as pd
+
+
+class PandasExcelFileSheetNames:
+    """
+    Returns the string list of sheet names contained in the Excel file.
+
+    This node uses ExcelFile method using the openpyxl package.
+    The openpyxl package is specified as a dependency in requirements.txt, so you should not need to manually install it.
+    See [Pandas documentation](https://pandas.pydata.org/docs/reference/api/pandas.ExcelFile.html) for details.
+
+    To display the list, connect output to PyListToString node to convert the list to a string, then connect the output to Pandas Show Text node to display the string.
+
+    category: IO
+    """
+    
+    @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": {
+                "file_path": ("STRING", {"multiline": False}),
+            }
+        }
+
+    RETURN_TYPES: tuple = ("PYLIST",)
+    FUNCTION: str = "f"
+    CATEGORY: str = "Data Analysis"
+
+    @classmethod
+    def IS_CHANGED(cls, **kw):
+        return float("NaN")
+
+    def f(self, file_path: str) -> tuple:
+        """
+        Returns the string list of sheet names contained in the Excel file.
+
+        Args:
+            file_path (str): The path to the Excel file.
+
+        Returns:
+            tuple: A tuple containing a string list of sheet names.
+        """
+        pylist = pd.ExcelFile(file_path, engine="openpyxl").sheet_names
+        return (pylist,)