Update app.py

app.py

@@ -18,7 +18,7 @@ def calculate_min_price(prices: list[float])-> str: #it's import to specify the
     return f"The minimum price is {min_price}"
 
 @tool
-def extract_price_from_snippet(snippet: str):
+def extract_price_from_snippet(snippet: str) -> list[str]:
     """
     A simple function to extract prices from a text snippet using regex.
     You can enhance this function for more complex price extraction.
@@ -28,6 +28,7 @@ def extract_price_from_snippet(snippet: str):
     # A basic regular expression to detect common price formats like $29.99, 29.99 USD, etc.
     price_pattern = r'\$\d+(?:,\d{3})*(?:\.\d{2})?|\d+(?:,\d{3})*(?:\.\d{2})?\s*(USD|EUR|GBP|INR|AUD|CAD)?'
     matches = re.findall(price_pattern, snippet)
+    matches = [str(x) for x in matches]
     return matches