Waylon Walker
Posted on January 7, 2022
Once you have made your sick looking cli apps with rich, eventually you are going to want to add some keybindings to them. Currently Textual, also written by @willmcgugan, does this extremely well. Fair Warning it is in super beta mode and expected to change a bunch. So take it easy with hopping on the train so fast.
Get the things
Install them from the command line.
pip install textual
pip install rich
Import make a .py file and import them in it.
from textual.app import App
from textual.widget import Widget
from rich.panel import Panel
Make what you have a widget
If you return your rich renderable out of class that inherits from textual.widget.Widget
, you can then dock this inside of an app class inheriting from textual.app.App
.
class MyWidget(Widget):
def render(self):
my_renderable = Panel("press q to quit")
return my_renderable
class MyApp(App):
async def on_mount(self) -> None:
await self.view.dock(MyWidget(), edge="top")
await self.bind("q", "quit")
run it
You've made a TUI (text user interface). Run the classmethod run
to display the it in its full screen glory.
MyApp.run(log="textual.log")
Final result
At this point It probably does not look much different, but it can be interactive by binding keys to any method on your app that starts with the word action_
, this includes the built-in actions such as action_quit
.
from textual.app import App from textual.widget import Widget from rich.panel import Panel
class MyWidget(Widget):
def render(self):
my_renderable = Panel("press q to quit")
return my_renderable
class MyApp(App):
async def on_mount(self) -> None:
await self.view.dock(MyWidget(), edge="top")
await self.bind("q", "quit")
if __name__ == "__main__":
MyApp.run(log="textual.log")
Posted on January 7, 2022
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