A dictionary TUI written in python using the textual library - see https://asciinema.org/a/518081

words.css

Button {
    padding-left: 1;
    padding-right: 1;
}

TextInput {
    layout: horizontal;
    height: 3;
    background: $panel-darken-1;
    border: tall $panel-darken-2;
    margin: 1;
    padding: 0 1;
}

TextInput.running {
    color:  #839496;
    text-style:  italic;
}

words.py

import wordbook

from textual.app import App, events
from textual.widgets import Header, Footer, Static
from textual.widgets.text_input import TextInput, TextWidgetBase, TextArea
from rich.text import Text

import re

class WordsApp(App[str]):

    async def on_mount(self) -> None:
        """Called when widget is first added."""
        self.wb = wordbook.WordBook(host="dict.org",
                               port=2628,
                               database="wn",
                               strategy="exact")
        self.connected = False

    def compose(self):
        yield Header()
        yield TextInput(placeholder="Lookup a word", id="lookup")
        yield Static(renderable="")
        yield Footer()

    async def _on_key(self, event: events.Key) -> None:
        if event.key == "tab":
            self.focus_next()
        elif event.key == "shift+tab":
            self.focus_previous()
        else:
            await self.press(event.key)

    async def on_text_input_submitted(self, event: TextInput.Submitted) -> None:
        value = event.value
        static = self.query_one(Static)
        self.log("Lookup", value)
        self.query_one(TextInput).add_class("running")

        if not self.connected:
            await self.wb.connect()
            self.connected = True

        lines = await self.wb.define(value)
        self.query_one(TextInput).remove_class("running")

        if lines:
            footer = re.findall('"([^"]+)"', lines[0])[-1]
            self.log(repr(lines[0]))
            text = Text.assemble((lines[1], "bold"),
                                 "\n",
                                 "\n".join(lines[2:]),
                                 "\n\n",
                                 (footer, "italic"))
            static.update(text)
        else:
            static.update(Text(f"The word {value} was not found", style="italic #93a1a1"))


app = WordsApp(
    log_path="textual.log", css_path="words.css", watch_css=True, log_verbosity=2, title="Words"
)

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