Confusing error if ipynb-filters are used

[rleyvasal]

Followed tutorial but getting error

Followed the nbdev tutorial for nbdev_cards example and did git push results. but I keep getting errors about CI and Github pages failing because quarto needs root access.

Also ran nbdev_clean but the problem persists

Minimal reproducible example

https://github.com/rleyvasal/nbdev_cards

[gaslitbytech]

The error is a not an permission error about root access.

It is AttributeError: path_. From your most recent action I have downloaded the following log:

Quarto is not installed. We will download and install it for you.
Installing or upgrading quarto -- this requires root access.
Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.9.16/x64/bin/nbdev_filter", line 8, in <module>
    sys.exit(nbdev_filter())
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/fastcore/script.py", line 119, in _f
    return tfunc(**merge(args, args_from_prog(func, xtra)))
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/nbdev/cli.py", line 46, in nbdev_filter
    with redirect_stdout(dn): filt(nb)
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/nbdev/processors.py", line 243, in __call__
    def __call__(self, nb): return self.nb_proc(nb).process()
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/nbdev/process.py", line 126, in process
    for proc in self.procs: self._proc(proc)
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/nbdev/process.py", line 120, in _proc
    if hasattr(proc,'end'): proc.end()
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/nbdev/frontmatter.py", line 66, in end
    self.fm.update({'output-file': _nbpath2html(Path(self.nb.path_)).name})
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/fastcore/basics.py", line 247, in __getattr__
    def __getattr__(self,k): return self[k] if k in self else stop(AttributeError(k))
  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/fastcore/basics.py", line 216, in stop
    raise e
AttributeError: path_
Error: Process completed with exit code 1.

I had a look at https://github.com/fastai/workflows and didn't see any recent commits that may have broke things. So I followed the tutorial with https://github.com/tourdownunder/nbdev-hello-world and don't get this issue.

It may have been intermittent. What happens if you run it again?

[rleyvasal]

I ran another 3 times and kept getting error:

  File "/opt/hostedtoolcache/Python/3.9.16/x64/lib/python3.9/site-packages/fastcore/basics.py", line 216, in stop
    raise e
AttributeError: path_
Error: Process completed with exit code 1.

I'm using Jupyter notebooks in VSCode so I updated my code to use pre-commit as described in the nbdev tutorial , but I still got the same errors

I added .pre-commit-config.yaml to my repo root and added the following code to my yaml file.

repos:
- repo: https://github.com/fastai/nbdev
  rev: 2.2.10
  hooks:
  - id: nbdev_clean
  - id: nbdev_export
  

[gaslitbytech]

What versions of fastcore and nbdev do you have?

fastcore==1.5.28
nbdev==2.3.12

If they are different it might be worth updating.

[jvivian]

What versions of fastcore and nbdev do you have?

fastcore==1.5.28
nbdev==2.3.12

If they are different it might be worth updating.

I am getting the same error and have the same versions installed. It looks like nbdev_filter is actually what is failing

nbdev_prepare
Success.
Traceback (most recent call last):
  File "<>/nbdev_filter", line 8, in <module>
    sys.exit(nbdev_filter())
  File "<>/lib/python3.8/site-packages/fastcore/script.py", line 119, in _f
    return tfunc(**merge(args, args_from_prog(func, xtra)))
  File "<>/lib/python3.8/site-packages/nbdev/cli.py", line 46, in nbdev_filter
    with redirect_stdout(dn): filt(nb)
  File "<>/lib/python3.8/site-packages/nbdev/processors.py", line 243, in __call__
    def __call__(self, nb): return self.nb_proc(nb).process()
  File "<>/lib/python3.8/site-packages/nbdev/process.py", line 126, in process
    for proc in self.procs: self._proc(proc)
  File "<>/lib/python3.8/site-packages/nbdev/process.py", line 120, in _proc
    if hasattr(proc,'end'): proc.end()
  File "<>/lib/python3.8/site-packages/nbdev/frontmatter.py", line 66, in end
    self.fm.update({'output-file': _nbpath2html(Path(self.nb.path_)).name})
  File "<>/lib/python3.8/site-packages/fastcore/basics.py", line 247, in __getattr__
    def __getattr__(self,k): return self[k] if k in self else stop(AttributeError(k))
  File "<>/lib/python3.8/site-packages/fastcore/basics.py", line 216, in stop
    raise e
AttributeError: path_

Will update if I figure it out

[ababino]

This happened to me after upgrading nbdev. I deleted (move it to another folder) the _quarto.yml file and run nbdev_prepare and now it works. I hope this is useful.

[jvivian]

This happened to me after upgrading nbdev. I deleted (move it to another folder) the _quarto.yml file and run nbdev_prepare and now it works. I hope this is useful.

Not sure how I ran into it while setting up from scratch but that definitely solved the issue. Much appreciated @ababino !

[rleyvasal]

I am still getting github emails about Run failed: CI .. and Run failed: Deploy to github.

I have updated to the latest versions of fastcore and nbdev and ran nbdev_prepare before commiting my changes.

fastcore==1.5.28
nbdev==2.3.12

[nicole-brewer]

I'm also getting this error while setting up from scratch using nbdev 2.2.10.

[seeM]

I think this should be fixed by using the latest version of nbdev locally, and ensuring ipynb-filter doesn't appear in your _quarto.yml. I'm not sure what's causing it to appear there in the first place -- I can only suspect an older version of nbdev

[seeM]

We're introducing a more useful error message in #1332. Also see this forum post for fixes to related issues.