How can I force an error in code without stoping the execution in quarto?

user_1913457 0
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I'm creating a document for students using quarto. One of the things I want to teach is how to read and understand error messages, so I was planning in creating wrong code blocks to force certain error messages (like the one below):

a_list = [1,2,"a"]
a_list[3]
# I want to generate an error to explain that python starts counting at 0

Regretfully, when I write the code above, quarto complains (with good reason) and will stop executing the rest of the code blocks and rendering the file.

Is there a way to get the error message while not stoping the execution?

I thought something like this would work, but it doesnt:

# | error: true
a_list[3]
quarto
1 Answers

The following works for me:

---
title: test-error
---    

```{python}
#| error: true
a_list = [1,2,"a"]
a_list[3]
```

It produces the following output:

The output generated by the snippet above, including "Index Error: list index out of range"

One thing to make sure is that the #| error: true line is at the beginning of the cell, and that there's no spaces between # and |.

user_2210070
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