Update app.py

app.py

@@ -10,10 +10,10 @@ PAGE_LINK
 """
 
 
-def make_tree(url=""):
+def make_tree(url1="",url2="",url3="",url4=""):
     link_box=[]
     html_out=""
-    feed1 = requests.get(f'{main_directory}{url}')
+    feed1 = requests.get(f'{main_directory}{url1}{url2}{url3}{url4}')
     spl = feed1.text.split("href=")
     for line in spl:
         spl2 = line.split(">")[0]
@@ -36,7 +36,7 @@ with gr.Blocks() as app:
     links=gr.JSON()
     html_=gr.HTML()
     drop1.change(make_tree,drop1,drop2)
-    drop2.change(make_tree,drop2,drop3)
-    drop3.change(make_tree,drop3,drop4)
+    drop2.change(make_tree,[drop1,drop2],drop3)
+    drop3.change(make_tree,[drop1,drop2,drop3],drop4)
     app.load(run,None,[drop1])
 app.launch()