change url

api.py

@@ -23,4 +23,4 @@ async def calculate_endpoint(request: Inputs):
         return {"error": str(e)}
 
 if __name__ == "__main__":
-    uvicorn.run(app, host="0.0.0.0")
+    uvicorn.run(app, host="0.0.0.0", port = 8000)

app.py

@@ -2,7 +2,7 @@ import gradio as gr
 import requests
 import re
 
-API_URL = "https://dragonhearted-calculator_api.hf.space/calculate"
+API_URL = "http://localhost:8000/calculate"
 
 def calculate(expression):
     response = requests.post(API_URL, json={"expression": expression})