Update app.py

app.py

@@ -14,7 +14,7 @@ app=FastAPI();
 templates = Jinja2Templates(directory="templates")
 @app.get("/",response_class=HTMLResponse)
 def test(request: Request,q:str="ls",body:bool=True):
-    with open("v.tex") as k:
+    with open("v.tex","w") as k:
         k.write(format(q))
     
     return templates.TemplateResponse("latex.html",