Have reloading config also reload the custom tab bar python modules

docs/changelog.rst

@@ -161,6 +161,8 @@ Detailed list of changes
 - :ac:`goto_session`: allow specifying a directory to select a session file
   from the directory (:pull:`9219`)
 
+- Have reloading config also reload the custom tab bar python modules (:disc:`9221`)
+
 
 0.44.0 [2025-11-03]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

kitty/boss.py

@@ -2938,6 +2938,8 @@ def load_config_file(self, *paths: str, apply_overrides: bool = True, overrides:
         from .guess_mime_type import clear_mime_cache
         clear_mime_cache()
         store_effective_config()
+        from .tab_bar import clear_caches
+        clear_caches()
 
     def safe_delete_temp_file(self, path: str) -> None:
         if is_path_in_temp_dir(path):

kitty/tab_bar.py

@@ -523,6 +523,11 @@ def draw_tab(
     return draw_tab
 
 
+def clear_caches() -> None:
+    load_custom_draw_tab.clear_cached()
+    load_custom_draw_tab_module.clear_cached()
+
+
 class CustomDrawTitleFunc:
 
     def __init__(self, data: dict[str, Any], implementation: Callable[[dict[str, Any]], str] | None = None):