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from textual.app import App, ComposeResult
from textual.widgets import Button
TEXT = """I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear."""
class TooltipApp(App):
CSS = """
Screen {
align: center middle;
}
"""
def compose(self) -> ComposeResult:
yield Button("Click me", variant="success")
def on_mount(self) -> None:
self.query_one(Button).tooltip = TEXT
if __name__ == "__main__":
app = TooltipApp()
app.run()
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