fixing

app.py

@@ -5,7 +5,6 @@ import requests
 import inspect
 import pandas as pd
 from smolagents import CodeAgent
-from smolagents.tools import PythonInterpreterTool
 import json
 import tempfile
 import urllib.parse
@@ -31,6 +30,19 @@ class HfApiModel:
         outputs = self.pipe(prompt, max_new_tokens=512, do_sample=True)
         return outputs[0]["generated_text"]
 
+class PythonInterpreterTool:
+    name = "python_interpreter"
+    description = "Evaluate Python code for logic, data, and math."
+
+    def __call__(self, code: str) -> str:
+        try:
+            local_vars = {}
+            exec(code, {"__builtins__": {}}, local_vars)
+            return repr(local_vars)
+        except Exception as e:
+            return f"Python execution error: {e}"
+
+
 class DuckDuckGoSearchTool:
     name = "duckduckgo_search"
     description = "Use DuckDuckGo to search the web."