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from datetime import datetime
from pytz import timezone
from textual.app import App, ComposeResult
from textual.reactive import reactive
from textual.widget import Widget
from textual.widgets import Digits, Label
class WorldClock(Widget):
time: reactive[datetime] = reactive(datetime.now)
def __init__(self, timezone: str) -> None:
self.timezone = timezone
super().__init__()
def compose(self) -> ComposeResult:
yield Label(self.timezone)
yield Digits()
def watch_time(self, time: datetime) -> None:
localized_time = time.astimezone(timezone(self.timezone))
self.query_one(Digits).update(localized_time.strftime("%H:%M:%S"))
class WorldClockApp(App):
CSS_PATH = "world_clock01.tcss"
time: reactive[datetime] = reactive(datetime.now)
def compose(self) -> ComposeResult:
yield WorldClock("Europe/London")
yield WorldClock("Europe/Paris")
yield WorldClock("Asia/Tokyo")
def update_time(self) -> None:
self.time = datetime.now()
def watch_time(self, time: datetime) -> None:
for world_clock in self.query(WorldClock): # (1)!
world_clock.time = time
def on_mount(self) -> None:
self.update_time()
self.set_interval(1, self.update_time)
if __name__ == "__main__":
app = WorldClockApp()
app.run()
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