Update app2.py

app2.py

@@ -3,11 +3,20 @@ import pytz
 from datetime import date
 from datetime import datetime
 from dateutil.relativedelta import relativedelta, MO
-
+import param
 
 from functools import partial
 from src.search import Search_Papers
 
+class MainBody(param.Parameterized):
+    main_body = param.List(default=[])
+
+    @param.depends("main_body")
+    def update(self):
+        return self.main_body
+
+main_body_instance = MainBody()
+
 def load_categories():
     f = open("categories_general.txt", "r")
     list_categories = f.read().splitlines() 
@@ -133,7 +142,7 @@ def update_header():
 
     print("Used categories:", buttons_to_add, flush=True)
     run_code(None)
-    main_body = update_mainTLDR()
+    main_body_instance.main_body = update_mainTLDR()
     # Update the filter list options to exclude buttons that are already in the header
     filter_list.options = [option for option in entered_options if option not in buttons_to_add]
 
@@ -165,7 +174,7 @@ def remove_from_header(event):
 template = pn.template.FastListTemplate(
     title="EasySciRead",
     header=[pn.Row(header_buttons, width=800, sizing_mode='fixed'), pn.Row(filter_list, width=250), pn.Row(add_to_header_button, width=55)],
-    main= main_body,
+    main= main_body_instance.update,
     sidebar=[buttons],
     accent_base_color="#88d8b0",
     header_background="#FFFFFF",