I can open an excel file and see its content

src/myfasthtml/core/commands.py

@@ -25,7 +25,7 @@ class BaseCommand:
   :type description: str
   """
   
-  def __init__(self, name, description):
+  def __init__(self, name, description, auto_register=True):
     self.id = uuid.uuid4()
     self.name = name
     self.description = description
@@ -34,7 +34,8 @@ class BaseCommand:
     self._ft = None
     
     # register the command
-    CommandsManager.register(self)
+    if auto_register:
+      CommandsManager.register(self)
   
   def get_htmx_params(self):
     return {
@@ -139,7 +140,7 @@ class Command(BaseCommand):
     self.args = args
     self.kwargs = kwargs
   
-  def _convert(self, key, value):
+  def _cast_parameter(self, key, value):
     if key in self.callback_parameters:
       param = self.callback_parameters[key]
       if param.annotation == bool:
@@ -174,7 +175,7 @@ class Command(BaseCommand):
     if client_response:
       for k, v in client_response.items():
         if k in self.callback_parameters:
-          new_kwargs[k] = self._convert(k, v)
+          new_kwargs[k] = self._cast_parameter(k, v)
     if 'client_response' in self.callback_parameters:
       new_kwargs['client_response'] = client_response
     
@@ -186,7 +187,9 @@ class Command(BaseCommand):
     # Set the hx-swap-oob attribute on all elements returned by the callback
     if isinstance(ret, (list, tuple)):
       for r in ret[1:]:
-        if hasattr(r, 'attrs') and r.get("id", None) is not None:
+        if (hasattr(r, 'attrs')
+            and "hx-swap-oob" not in r.attrs
+            and r.get("id", None) is not None):
           r.attrs["hx-swap-oob"] = r.attrs.get("hx-swap-oob", "true")
     
     if not ret_from_bindings: