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"""Asynchronous example: list electricity and gas prices via REST API."""
import asyncio
from datetime import UTC, datetime
from energyzero import EnergyZero, TimeRange # pyright: ignore[reportMissingImports]
def _format_entry(entry: dict[str, float | TimeRange]) -> str:
timerange = entry["timerange"]
price = entry["price"]
if not isinstance(timerange, TimeRange) or not isinstance(price, float):
msg = "Entry does not contain a valid timerange/price pair"
raise TypeError(msg)
return f"{timerange}: €{price:0.3f}"
async def main() -> None:
"""Fetch and print electricity and gas price lists for a single day."""
async with EnergyZero() as client:
today = datetime.now(UTC).astimezone().date()
electricity = await client.get_electricity_prices(start_date=today)
gas = await client.get_gas_prices(start_date=today)
print(f"--- ELECTRICITY ({today.isoformat()}) ---")
print("\n".join(_format_entry(entry) for entry in electricity.timestamp_prices))
print(f"\n--- GAS ({today.isoformat()}) ---")
print("\n".join(_format_entry(entry) for entry in gas.timestamp_prices))
if __name__ == "__main__":
asyncio.run(main())
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