lewisham-council-client 0.1.0

Python client for Lewisham Council civic data — bin collection schedules and address resolution.

lewisham-council-client

Framework-neutral Python client for Lewisham Council civic data. Provides asynchronous address resolution and waste collection schedule retrieval for any Lewisham UPRN.

No dependency on FastAPI, Home Assistant, MCP, uvicorn, or any web framework. Designed to be embedded directly in another Python application.

Unofficial — not affiliated with or endorsed by Lewisham Council. Uses undocumented public endpoints that may change without notice; the client raises UpstreamScraperChangedError when the response shape no longer matches expectations.

Installation

pip install lewisham-council-client

Usage

import asyncio
from lewisham_client import LewishamService

async def main() -> None:
    service = LewishamService()
    try:
        addresses = await service.lookup_addresses("SE6 1SQ")
        for address in addresses:
            print(address.uprn, address.title)

        if addresses:
            schedule = await service.get_collection_schedule(addresses[0].uprn)
            for entry in schedule.collections:
                print(entry.waste_type, entry.frequency, entry.next_collection)
    finally:
        await service.aclose()

asyncio.run(main())

LewishamService creates and manages its own httpx.AsyncClient by default. If the host application already manages a shared httpx.AsyncClient, pass it via LewishamClient:

import httpx
from lewisham_client import LewishamClient, LewishamService

async with httpx.AsyncClient() as http:
    service = LewishamService(client=LewishamClient(http_client=http))
    schedule = await service.get_collection_schedule(uprn)

Errors

All errors are subclasses of lewisham_client.DomainError:

Exception	When
InvalidAddressSearchError	Search input is too short or malformed.
InvalidUprnError	UPRN is not a non-empty decimal string.
AddressNotFoundError	No Lewisham address found for the given UPRN.
CollectionScheduleNotFoundError	Lewisham returned no parseable schedule for the address.
UpstreamScraperChangedError	Lewisham's response shape no longer matches expectations.
UpstreamUnavailableError	Lewisham could not be reached (timeout or transport error).

Caching

LewishamService uses an in-process MemoryTtlCache by default with conservative TTLs (schedules: 24 h, address searches: 7 d, UPRNs: 30 d, negative results: 1 h). The defaults are suitable for a single-process consumer such as a Home Assistant integration.

Injectable cache and TTL parameters are available for consumers that need different policy or a shared cache.