Update app.py

app.py

@@ -14,7 +14,7 @@ templates = Jinja2Templates(directory="templates")
 def test(request: Request,q:str="ls",body:bool=True):
     with open("./v.tex","w") as k:
         k.write(format(q) if body else q)
-    r=run("pdflatex v.tex".split(" "),capture_output=True).stderr
+    r=run("pdflatex v.tex".split(" "),capture_output=True)
     if r.stderr:
         return r.stderr
     else: