fixing

app.py

@@ -10,6 +10,7 @@ import tempfile
 import urllib.parse
 from pathlib import Path
 from duckduckgo_search import DDGS
+from smolagents.schema import Tool 
 
 
 # --- Constants ---
@@ -30,7 +31,7 @@ class HfApiModel:
         outputs = self.pipe(prompt, max_new_tokens=512, do_sample=True)
         return outputs[0]["generated_text"]
 
-class PythonInterpreterTool:
+class PythonInterpreterTool(Tool):
     name = "python_interpreter"
     description = "Evaluate Python code for logic, data, and math."
 
@@ -43,7 +44,7 @@ class PythonInterpreterTool:
             return f"Python execution error: {e}"
 
 
-class DuckDuckGoSearchTool:
+class DuckDuckGoSearchTool(Tool):
     name = "duckduckgo_search"
     description = "Use DuckDuckGo to search the web."
 
@@ -59,7 +60,7 @@ class DuckDuckGoSearchTool:
 
 
 # --- Custom Tools ---
-class SerperSearchTool:
+class SerperSearchTool(Tool):
     """Enhanced search tool using Serper API for more reliable results"""
     
     name = "serper_search"
@@ -110,7 +111,7 @@ class SerperSearchTool:
             print(f"Serper search error: {e}")
             return f"Search error for '{query}': {str(e)}"
 
-class MathCalculatorTool:
+class MathCalculatorTool(Tool):
     """Tool for mathematical calculations and computations"""
     
     name = "math_calculator"
@@ -141,7 +142,7 @@ class MathCalculatorTool:
         except Exception as e:
             return f"Math calculation error: {str(e)}"
 
-class FileProcessorTool:
+class FileProcessorTool(Tool):
     """Tool for processing various file formats"""
     
     name = "file_processor"