Adjust priority of Parameterized object (#4931)

Author: philippjfr

panel/pane/markup.py

@@ -77,7 +77,7 @@ def applies(cls, obj: Any) -> float | bool | None:
         module, name = getattr(obj, '__module__', ''), type(obj).__name__
         if ((any(m in module for m in ('pandas', 'dask')) and
             name in ('DataFrame', 'Series')) or hasattr(obj, '_repr_html_')):
-            return 0.2
+            return 0 if isinstance(obj, param.Parameterized) else 0.2
         elif isinstance(obj, str):
             return None
         else:

panel/param.py

@@ -200,8 +200,6 @@ class Param(PaneBase):
     if hasattr(param, 'Event'):
         mapping[param.Event] = Button
 
-    priority: ClassVar[float | bool | None] = 0.1
-
     _ignored_refs: ClassVar[Tuple[str]] = ('object',)
 
     _linkable_properties: ClassVar[Tuple[str]] = ()
@@ -697,9 +695,11 @@ def _cleanup(self, root: Model | None = None) -> None:
 
     @classmethod
     def applies(cls, obj: Any) -> float | bool | None:
-        return (is_parameterized(obj) or
-                isinstance(obj, param.parameterized.Parameters) or
-                (isinstance(obj, param.Parameter) and obj.owner is not None))
+        if isinstance(obj, param.parameterized.Parameters):
+            return 0.8
+        elif (is_parameterized(obj) or (isinstance(obj, param.Parameter) and obj.owner is not None)):
+            return 0.1
+        return False
 
     @classmethod
     def widget_type(cls, pobj):