Traceback (most recent call last):
  File "/home/pyodide/pyscript/web.py", line 69, in append
    try:A.tagName;B._dom_element.appendChild(A)
        ^^^^^^^^^
AttributeError: 'str' object has no attribute 'tagName'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pyodide/pyscript/web.py", line 72, in append
    A.length
AttributeError: 'str' object has no attribute 'length'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/lib/python313.zip/_pyodide/_base.py", line 597, in eval_code_async
    await CodeRunner(
    ...<9 lines>...
    .run_async(globals, locals)
  File "/lib/python313.zip/_pyodide/_base.py", line 411, in run_async
    coroutine = eval(self.code, globals, locals)
  File "<exec>", line 5, in <module>
  File "/home/pyodide/pyscript/web.py", line 74, in append
    except AttributeError:G=f'Element "{A}" is a proxy object, "but not a valid element or a NodeList.';raise TypeError(G)
                                                                                                        ^^^^^^^^^^^^^^^^^^
TypeError: Element "Python object append OK" is a proxy object, "but not a valid element or a NodeList.