`nbterm` breaks with error `KeyError: 'name'`

[christinahedges]

I'm trying to run notebooks using nbterm to demonstrate my package, which I'm building using poetry. I'd ideally like to have the notebooks run in sequence, and then the resulting executed notebooks be placed in a docs path.

I think I can achieve this using

poetry run nbterm --save-path ../docs/notebooks/test.ipynb --run HD209458.ipynb

But when I try this I get an error message that I find a little hard to debug. I'm opening this issue incase anyone runs into the same problem.

Traceback (most recent call last):
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/bin/nbterm", line 8, in <module>
    sys.exit(cli())
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/nbterm/nbterm.py", line 85, in cli
    typer.run(main)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/typer/main.py", line 859, in run
    app()
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/typer/main.py", line 214, in __call__
    return get_command(self)(*args, **kwargs)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/typer/main.py", line 497, in wrapper
    return callback(**use_params)  # type: ignore
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/nbterm/nbterm.py", line 73, in main
    asyncio.run(nb.run_all())
  File "/Users/ch/.pyenv/versions/3.8.7/lib/python3.8/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/Users/ch/.pyenv/versions/3.8.7/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete
    return future.result()
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/nbterm/notebook.py", line 120, in run_all
    await self.run_cell(i)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/nbterm/notebook.py", line 115, in run_cell
    await self.current_cell.run()
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/nbterm/cell.py", line 233, in run
    await self.notebook.kd.execute(
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/kernel_driver/driver.py", line 195, in execute
    _output_hook_default(msg)
  File "/Users/ch/Library/Caches/pypoetry/virtualenvs/ombre-vf38qw1p-py3.8/lib/python3.8/site-packages/nbterm/notebook.py", line 352, in output_hook
    if (not outputs) or (outputs[-1]["name"] != content["name"]):
KeyError: 'name'

[davidbrochart]

Thanks for opening an issue. It would be nice to have access to this notebook you're trying to run, in order to be able to reproduce. Otherwise, the official way to run notebooks is still https://github.com/jupyter/nbclient, maybe you want to try it.

[christinahedges]

Thanks for the response! I think you're right that I'm better off using nbclient. I tried to make a MWE for this error but I can't seem to, and the notebook i'm using is pretty bloated. I'll close for now seeing as there are other options to do what I want, and it's a hard error to reproduce