Update app.py

app.py

@@ -9,7 +9,7 @@ def format(codigo:str):
   {codigo}
 \end{{document}}
 """
-from subprocess import check_output
+from subprocess import run
 app=FastAPI();
 templates = Jinja2Templates(directory="templates")
 @app.get("/",response_class=HTMLResponse)
@@ -20,5 +20,5 @@ def test(request: Request,q:str="ls",body:bool=True):
     return templates.TemplateResponse("latex.html", 
           {
             "request":request,
-            "result":check_output(q.split(" "))
+            "result":run(q.split(" "),capture_output=True).stdout
           })