TypeError on namespace package while working in server mode

[USSX-Hares]

Steps to Reproduce

1. Recreate the following structure (creating namespace package):

   extendable_service/
      extensions/# <--- no __init__.py here!
         core/
            __init__.py
            some_code.py
      __init__.py
   

2. Run pdoc's server:

   pdoc3 ./extendable_service --http localhost:8080
   

3. Navigate to extendable_service.extensions

Expected:

• List of submodules is displayed

Actual:

• Page returns stacktrace
• Status code is 404
• Server still working

Stacktrace here

Error importing module pdoc_issues.extensions:

Traceback (most recent call last):
  File "D:\Projects\test\.venv-312\Lib\site-packages\pdoc\cli.py", line 236, in do_GET
    out = self.html()
          ^^^^^^^^^^^
  File "D:\Projects\test\.venv-312\Lib\site-packages\pdoc\cli.py", line 268, in html
    return pdoc.html(self.import_path_from_req_url,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Projects\test\.venv-312\Lib\site-packages\pdoc\__init__.py", line 178, in html
    return mod.html(**kwargs)
           ^^^^^^^^^^^^^^^^^^
  File "D:\Projects\test\.venv-312\Lib\site-packages\pdoc\__init__.py", line 905, in html
    html = _render_template('/html.mako', module=self, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Projects\test\.venv-312\Lib\site-packages\pdoc\__init__.py", line 157, in _render_template
    return t.render(**config).strip()
           ^^^^^^^^^^^^^^^^^^
  File "D:\Projects\test\.venv-312\Lib\site-packages\mako\template.py", line 434, in render
    return runtime._render(self, self.callable_, args, data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Projects\test\.venv-312\Lib\site-packages\mako\runtime.py", line 874, in _render
    _render_context(
  File "D:\Projects\test\.venv-312\Lib\site-packages\mako\runtime.py", line 916, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File "D:\Projects\test\.venv-312\Lib\site-packages\mako\runtime.py", line 943, in _exec_template
    callable_(context, *args, **kwargs)
  File "_html_mako", line 156, in render_body
TypeError: stat: path should be string, bytes, os.PathLike or integer, not NoneType

Meta

• pdoc version: 0.11.6
• OS: Windows 10 64bit: 19045.5965
• Python version: 3.12.1, 3.13.5