Passing Text as TabPane title causes an exception

[ihabunek]

In Textual 2.0, passing rich Text as TabPane title causes an exception:

MarkupError: 'Text' object has no attribute 'splitlines'

This should work since title is typed as TextType = Union[str, "Text"].

To reproduce:

from rich.text import Text
from textual.app import App, ComposeResult
from textual.widgets import Static, TabbedContent, TabPane


class BugApp(App):
    def compose(self) -> ComposeResult:
        with TabbedContent():
            with TabPane(Text("Tab")):
                yield Static("Content")


if __name__ == "__main__":
    app = BugApp()
    app.run()

Textual Diagnostics

Versions

Name	Value
Textual	2.0.0
Rich	13.9.4

Python

Name	Value
Version	3.12.8
Implementation	CPython
Compiler	GCC 14.2.1 20240912 (Red Hat 14.2.1-3)
Executable	/home/ihabunek/projects/ihabunek/pgtui/.venv/bin/python3

Operating System

Name	Value
System	Linux
Release	6.12.7-100.fc40.x86_64
Version	#1 SMP PREEMPT_DYNAMIC Fri Dec 27 17:00:45 UTC 2024

Terminal

Name	Value
Terminal Application	Kitty
TERM	xterm-kitty
COLORTERM	truecolor
FORCE_COLOR	Not set
NO_COLOR	Not set

Rich Console options

Name	Value
size	width=182, height=48
legacy_windows	False
min_width	1
max_width	182
is_terminal	False
encoding	utf-8
max_height	48
justify	None
overflow	None
no_wrap	False
highlight	None
markup	None
height	None

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[dominikgehl]

Latest source code defines title as ContentType (https://github.com/Textualize/textual/blob/main/src/textual/widgets/_tabbed_content.py#L208)

[ihabunek]

Oh, I must have had a cached version I was looking at somehow. Sorry about the noise.

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