Update app.py

app.py

@@ -97,5 +97,5 @@ async def predict(coref_request: CorefRequest):
     raise HTTPException(status_code=400, detail="Coreference resolution failed")
 
 if __name__ == "__main__":
-    import uvicorn
-    uvicorn.run(app, host="0.0.0.0", port=int(os.getenv("PORT", 7860)))
+    port = int(os.environ.get("PORT", 7860))
+    uvicorn.run(app, host="0.0.0.0", port=port)