tree behavior changes in Textual 0.80

[godlygeek]

With Textual 0.79.1, running python docs/examples/widgets/tree.py looks like this:

With Textual 0.80.1, running python docs/examples/widgets/tree.py looks like this:

Note that the arrows representing whether non-leaf nodes are expanded or collapsed are reversed, and the orange lines indicating the current node and all of its descendants are no longer there in the latest version. Neither of these changes are mentioned in the changelog.

# Textual Diagnostics

## Versions

| Name    | Value  |
|---------|--------|
| Textual | 0.80.1 |
| Rich    | 13.7.1 |

## Python

| Name           | Value                                                            |
|----------------|------------------------------------------------------------------|
| Version        | 3.11.10                                                          |
| Implementation | CPython                                                          |
| Compiler       | GCC 12.1.1 20220628 (Red Hat 12.1.1-3)                           |
| Executable     | /home/mwoznisk/.pyenv/versions/3.11/envs/memray-3.11/bin/python3 |

## Operating System

| Name    | Value                               |
|---------|-------------------------------------|
| System  | Linux                               |
| Release | 5.15.153.1-microsoft-standard-WSL2  |
| Version | #1 SMP Fri Mar 29 23:14:13 UTC 2024 |

## Terminal

| Name                 | Value          |
|----------------------|----------------|
| Terminal Application | *Unknown*      |
| TERM                 | putty-256color |
| COLORTERM            | truecolor      |
| FORCE_COLOR          | *Not set*      |
| NO_COLOR             | *Not set*      |

## Rich Console options

| Name           | Value                |
|----------------|----------------------|
| size           | width=212, height=98 |
| legacy_windows | False                |
| min_width      | 1                    |
| max_width      | 212                  |
| is_terminal    | True                 |
| encoding       | utf-8                |
| max_height     | 98                   |
| justify        | None                 |
| overflow       | None                 |
| no_wrap        | False                |
| highlight      | None                 |
| markup         | None                 |
| height         | None                 |

[github-actions[bot]]

We found the following entry in the FAQ which you may find helpful:

• How can I select and copy text in a Textual app?

Feel free to close this issue if you found an answer in the FAQ. Otherwise, please give us a little time to review.

This is an automated reply, generated by FAQtory

[godlygeek]

For context, I noticed this while updating the snapshots for Memray. This shows up as an unexpected difference for many of our memray tree tests:

[github-actions[bot]]

Don't forget to star the repository!

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