posit-dev / posit-dev/py-shiny
Confusing error message with Express using `ui.nav_panel` alongside content that is not in panel
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- Dominant language
- Python
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- 1.8k
- Forks
- 135
- Avg merge
- 2d 18h
- Merged PRs (30d)
- 21
Description
The following app throws a confusing error. Live app
from shiny.express import ui
with ui.nav_panel("A"):
"Page A content"
"hello"
This is the error message:
RuntimeError: 'str' object has no attribute 'resolve'
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the minimal Python example from the issue and trace how shiny.express.ui.nav_panel handles the following string content. Identify why the current failure reports only an attribute error, then make the resulting error explain the invalid content arrangement and verify that the example produces the clearer message.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 55/100