Update calculator_server.py

calculator_server.py

@@ -1,5 +1,6 @@
 # calculator_server.py
-from fastmcp import FastMCP, ToolError
+from fastmcp import FastMCP
+from fastmcp.exceptions import ToolError
 
 # 1. Create a FastMCP server instance
 mcp = FastMCP(name="Calculator 🧮")
@@ -27,10 +28,7 @@ def divide(a: float, b: float) -> float:
     return a / b
 
 # 3. Add a main block to run the server
-# For Hugging Face Spaces, it's best to run on host '0.0.0.0'
-# and the port specified by the PORT environment variable (defaulting to 7860).
 if __name__ == "__main__":
     import os
-    # Get port from environment or default to 7860 for Hugging Face
     port = int(os.environ.get("PORT", 7860))
     mcp.run(transport="streamable-http", host="0.0.0.0", port=port)