Update app.py

app.py

@@ -153,12 +153,13 @@ def create_valid_filename(invalid_filename: str) -> str:
     
 def load_html(inp):
     ht=""
-    for ea in inp:
-        outp,prom=ea
-        ht+=f"""<div>
-        <pre>{outp}</pre>
-        <pre>{prom}</pre>
-        </div>"""
+    if inp:
+        for ea in inp:
+            outp,prom=ea
+            ht+=f"""<div>
+            <pre>{outp}</pre>
+            <pre>{prom}</pre>
+            </div>"""
     with open('index.html','r') as h:
         html=h.read()
         html = html.replace("$body",f"{ht}")