kernel error - again dll

[danielemarinazzo]

Hi

I am trying to run the SSVEP_load_and_visualize.ipynb notebook, and I get a kernel error (python 3.8, Windows 10), see below.

I tried the same on Ubuntu 18 and no error there

Traceback (most recent call last):
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\web.py", line 1704, in _execute
    result = await result
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\gen.py", line 769, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\notebook\services\sessions\handlers.py", line 69, in post
    model = yield maybe_future(
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\gen.py", line 762, in run
    value = future.result()
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\gen.py", line 769, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
    kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\gen.py", line 762, in run
    value = future.result()
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\gen.py", line 769, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 100, in start_kernel_for_session
    kernel_id = yield maybe_future(
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\tornado\gen.py", line 762, in run
    value = future.result()
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 176, in start_kernel
    kernel_id = await maybe_future(self.pinned_superclass.start_kernel(self, **kwargs))
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_client\multikernelmanager.py", line 185, in start_kernel
    km.start_kernel(**kwargs)
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_client\manager.py", line 309, in start_kernel
    kernel_cmd, kw = self.pre_start_kernel(**kw)
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_client\manager.py", line 256, in pre_start_kernel
    self.write_connection_file()
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_client\connect.py", line 468, in write_connection_file
    self.connection_file, cfg = write_connection_file(self.connection_file,
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_client\connect.py", line 138, in write_connection_file
    with secure_write(fname) as f:
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_core\paths.py", line 435, in secure_write
    win32_restrict_file_to_user(fname)
  File "c:\users\ricercasc\miniconda3\envs\eeg-notebooks_py38\lib\site-packages\jupyter_core\paths.py", line 361, in win32_restrict_file_to_user
    import win32api
ImportError: DLL load failed while importing win32api: The specified module could not be found.

[JohnGriffiths]

Ciao @danielemarinazzo. Is this still an issue for you?

[ErikBjare]

This all seems like code in jupyter_core? Weird that it gets called/imported?

Anyway, pretty sure it's caused by pywin32 being missing. You can probably install it with pip install pywin32.

Maybe we should add it to deps? (I depend on it in other projects and it's been hassle-free)

[danielemarinazzo]

maybe, it was on another PC that I don't have at the moment. Gonna try in July but makes sense