Error messages in from jupyter execution have regressed

[cpcloud]

Bug description

In previous versions of quarto, failed notebook cell execution used to show the entire exception.

In version 1.5.x (not sure where exactly this changed), no exception is being shown, making it cumbersome to debug, since I have to copy and paste each line into a script and run that (or run each line individually).

Steps to reproduce

Run any quarto document with python code that raises an exception.

Expected behavior

I would expect the exception raised from the cell to be shown.

Actual behavior

This is what I see

Your environment

• Linux
• Quarto 1.5.13

Quarto check output

❯ quarto check
⚠️   The `--unstable` flag is deprecated and will be removed in Deno 2.0. Use granular `--unstable-*` flags instead.
Learn more at: https://docs.deno.com/runtime/manual/tools/unstable_flags
Quarto 1.5.13
[✓] Checking versions of quarto binary dependencies...
warning: Use of deprecated "Deno.run()" API. This API will be removed in Deno 2. Run again with DENO_VERBOSE_WARNINGS=1 to get more details.
      Pandoc version 3.1.11: OK
      Dart Sass version 1.70.0: OK
      Deno version 1.40.2: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.5.13
      Path: /nix/store/24fadk4a702a9dqyaykm169w7rc3li5h-quarto-1.5.13/bin

[✓] Checking tools....................OK
      TinyTeX: (not installed)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Tex:  (not detected)

⚠️   The `Deno.dlopen` API was used with `--unstable` flag. The `--unstable` flag is deprecated and will be removed in Deno 2.0. Use granular `--unstable-ffi` instead.
Learn more at: https://docs.deno.com/runtime/manual/tools/unstable_flags
[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.10.13
      Path: /nix/store/j2ar9vfm11mclq2alng5ysmh36wgkl43-python3-3.10.13-env/bin/python3.10
      Jupyter: 5.7.1
      Kernels: python3

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
      Version: 4.3.2
      Path: /nix/store/jw6pipk7qnn86f7rlpyd171l7zviv2bn-R-4.3.2/lib/R
      LibPaths:
        - /nix/store/181rd1hsi5b111hfg6ck81wkzkzm6p03-r-boot-1.3-28.1/library
        - /nix/store/c8jrbl1yzjmyfyvwna2qjwazx06z4hzv-r-class-7.3-22/library
        - /nix/store/hd8a3ii252nr2mdsf2lnlk4cdsqxqcfd-r-MASS-7.3-60/library
        - /nix/store/bpz8089g012cv72lnzlz3irypk7gj4xv-r-cluster-2.1.6/library
        - /nix/store/3bg0ghpqc2hb67das7x8cp3hjdy7lws4-r-codetools-0.2-19/library
        - /nix/store/j7bff3ya0vpawmnz5dwqzixqgvl9282j-r-foreign-0.8-86/library
        - /nix/store/dhnvcbr5525xsvmp38sy4mwa6p212dkd-r-KernSmooth-2.23-22/library
        - /nix/store/qj8ysk1prs9pig8k4f82hnsscybjsg60-r-lattice-0.22-5/library
        - /nix/store/3pf5skwlalrrrwbkc5jrqbvvi30bhbnd-r-Matrix-1.6-4/library
        - /nix/store/z02fd87b7l9pacsxw1kgcf0hq2v02881-r-mgcv-1.9-1/library
        - /nix/store/ds22w0lxlrnr8p89r2jqqhf25zxjm153-r-nlme-3.1-164/library
        - /nix/store/ym9pqwd4f8hh8rj62r24h7z717cgacsk-r-nnet-7.3-19/library
        - /nix/store/jq9sggiygw4n8b879sh4gygax7qql0gb-r-rpart-4.1.23/library
        - /nix/store/dwwbpvhmdjcxjvmbr4gj0wkpaf16zrii-r-spatial-7.3-17/library
        - /nix/store/qwj0f4glp4h5y2br1pf6wkklw9g78dkq-r-survival-3.5-7/library
        - /nix/store/qgl32by55g8s7vjswb8wlxrxkrgk13j7-r-dplyr-1.1.4/library
        - /nix/store/j0bqr2iiv2n0mpqsqzsvwj57s3g61nl2-r-cli-3.6.2/library
        - /nix/store/v3w31m4knfbmi1jl2m49kj76yhzb3p3k-r-generics-0.1.3/library
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        - /nix/store/78b16gxpwq379qdgxd1d8wbc5qyq90fw-r-rlang-1.1.2/library
        - /nix/store/mwvi4gwd8v6pwgs7cdryibahqg35p0vg-r-magrittr-2.0.3/library
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        - /nix/store/vx5iiv1a86hwn49z0pcdl0km83fbxq9m-r-tibble-3.2.1/library
        - /nix/store/qs6d3l8hq5m69ygaq5l2mmx5y30jvs7g-r-pkgconfig-2.0.3/library
        - /nix/store/c4yrnfmhcs5zphnn7bxvm47r5lagbg3d-r-tidyselect-1.2.0/library
        - /nix/store/vp1jik7pl2z4zm7rbd6yjsaxcgikrjxm-r-withr-2.5.2/library
        - /nix/store/rfvw6fs4bcxkpc56ym3yldgh6vjyh7fr-r-reticulate-1.34.0/library
        - /nix/store/zrv5s66nshx1zik56ppaqjgdmnwdb063-r-here-1.0.1/library
        - /nix/store/xksl2m7pvizm5p0z2pks61zrmkn94py7-r-rprojroot-2.0.4/library
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        - /nix/store/a7klpdkqhk0a8k4k7j08l964rkpmhzwj-r-bslib-0.6.1/library
        - /nix/store/151r76f11b0dsmc04l1vy8mrj7s51rqg-r-base64enc-0.1-3/library
        - /nix/store/xyp0y3wx7xhkjx6qcm30ggs5z3rhysln-r-cachem-1.0.8/library
        - /nix/store/mzk2akbwb2ym6bmzc716zc8jgb1xssz8-r-fastmap-1.1.1/library
        - /nix/store/45yn670gkl7fqx3f15cvfnm0b6v343mq-r-htmltools-0.5.7/library
        - /nix/store/dxkzcads2naxr3i9g0ff4pc3ih5wphf7-r-digest-0.6.33/library
        - /nix/store/189v8bd5gc0xdrbr8yh0ac6shddlnq1p-r-ellipsis-0.3.2/library
        - /nix/store/7nhh7r5xh68kyy2xsyh3pykxvmdk0ay1-r-jquerylib-0.1.4/library
        - /nix/store/888wl7dxqpby9r1aw1agr8ji0svbk4f3-r-memoise-2.0.1/library
        - /nix/store/j25fprg17ric5ylgi0vgnf68adf850v8-r-mime-0.12/library
        - /nix/store/iml3f3r268s77021myfda6qw4pfgjs1h-r-sass-0.4.8/library
        - /nix/store/vrkbb7czpglzck3p4lgj40vxgrhxf6wv-r-fs-1.6.3/library
        - /nix/store/fdj7k4zdvkjvzkz8vggjs7ym6g0xmcn3-r-evaluate-0.23/library
        - /nix/store/wrcpj9xj9iwbdmfbqbsc48lyqbij3wk3-r-fontawesome-0.5.2/library
        - /nix/store/2ycc6rrd79wb4wgswwxf5pxqgp7a6rpd-r-knitr-1.45/library
        - /nix/store/82lvdhdyl72amzzmd9g9j0n4glrq4hrm-r-highr-0.10/library
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        - /nix/store/izlrpgnzj6n946iara984f0v5xdhqh6g-r-yaml-2.3.8/library
        - /nix/store/dh4pwcvfb3rjgzs2911gx3nk88rckiz4-r-stringr-1.5.1/library
        - /nix/store/zkhmiqzwhm8h6ad031zfjn6j02rsc15j-r-stringi-1.8.3/library
        - /nix/store/mwxqly90w8s64mybbmkgsr54x8srwn29-r-tinytex-0.49/library
        - /nix/store/33jprafdyfi3sr6n1saxnkdjbc4hvdvi-r-tidyr-1.3.0/library
        - /nix/store/vdcgjc0za0cmrfzn0i8fq93kgiiflgdd-r-cpp11-0.4.7/library
        - /nix/store/970z2f6z8mrb0p21ncb0y6v9s9w9g150-r-purrr-1.0.2/library
        - /nix/store/jw6pipk7qnn86f7rlpyd171l7zviv2bn-R-4.3.2/lib/R/library
      knitr: 1.45
      rmarkdown: 2.25

[✓] Checking Knitr engine render......OK

[cscheid]

Can you provide a minimal repro? I don't think I can reproduce. I'm on main:

$ cat 8849.qmd
---
title: "Hello"
engine: jupyter
---

```{python}
# Let's error
raise ValueError("Hello")
```

$ quarto render 8849.qmd

Starting python3 kernel...Done

Executing '8849.quarto_ipynb'
  Cell 1/1: ''...ERROR:

An error occurred while executing the following cell:
------------------
# Let's error
raise ValueError("Hello")
------------------

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
Cell In[1], line 2
      1 # Let's error
----> 2 raise ValueError("Hello")

ValueError: Hello
ValueError: Hello

[cpcloud]

Yep, lemme cook one up.

[mcanouil]

You can share a self-contained "working" (reproducible) Quarto document using the following syntax, i.e., using more backticks than you have in your document (usually four ````).
See https://quarto.org/bug-reports.html#small-is-beautiful-aim-for-a-single-document-with-10-lines.

If you have multiple files (and if it is absolutely required to have multiple files), please share as a Git repository.

R	Python
````qmd --- title: "Reproducible Quarto Document" format: html engine: knitr --- This is a reproducible Quarto document. ```{r} x <- c(1, 2, 3, 4, 5) y <- c(1, 4, 9, 16, 25) plot(x, y) ```  The end. ````	````qmd --- title: "Reproducible Quarto Document" format: html engine: jupyter --- This is a reproducible Quarto document. ```{python} import matplotlib.pyplot as plt x = [1, 2, 3, 4, 5] y = [1, 4, 9, 16, 25] plt.plot(x, y) plt.show() ```  The end. ````

Additionally and if not already given, please share the output of quarto check within a code blocks (i.e., using three backticks ```txt), see https://quarto.org/bug-reports.html#check.

[cpcloud]

Thanks @mcanouil! I'm aware of the self-contained working reproducible example requirement, been working on open source for a big part of my career 😅

Feel free to glance at my previous bug reports here they're usually pretty thorough. I'll admit I was being a bit lazy here, thanks for the reminder!

[cpcloud]

Here's a reproducer, on 1.5.13 per the quarto check request, which I included in the initial report.

```{python}
x = {}
x["does not exist"]
```

Here's what I see:

❯ cat docs/posts/into-snowflake/index.qmd
```{python}
x = {}
x["does not exist"]
```

❯ quarto render docs/posts/into-snowflake/index.qmd
⚠️   The `--unstable` flag is deprecated and will be removed in Deno 2.0. Use granular `--unstable-*` flags instead.
Learn more at: https://docs.deno.com/runtime/manual/tools/unstable_flags
warning: Use of deprecated "Deno.run()" API. This API will be removed in Deno 2. Run again with DENO_VERBOSE_WARNINGS=1 to get more details.
⚠️   The `Deno.dlopen` API was used with `--unstable` flag. The `--unstable` flag is deprecated and will be removed in Deno 2.0. Use granular `--unstable-ffi` instead.
Learn more at: https://docs.deno.com/runtime/manual/tools/unstable_flags
warning: Use of deprecated "Deno.stderr.rid" API. This API will be removed in Deno 2. Run again with DENO_VERBOSE_WARNINGS=1 to get more details.
warning: Use of deprecated "Deno.isatty()" API. This API will be removed in Deno 2. Run again with DENO_VERBOSE_WARNINGS=1 to get more details.

Executing 'index.ipynb'
  Cell 1/1: ''...ERROR:

An error occurred while executing the following cell:
------------------
x = {}
x["does not exist"]
------------------

I just realized that I recently changed my Jupyter config to use rich tracebacks. Lemme see if that's the problem.

[cpcloud]

The rich traceback config is unrelated: disabling that doesn't change anything for me.

[cpcloud]

Hm, ok, now it does seem to have an effect...

[cpcloud]

Well, that's unfortunate, but I guess I'll disable the rich tracebacks.