munich-transport 0.1.0

Async Python client for Munich public transport data.

Munich Transport

Async Python client for Munich public transport data.

This package is intentionally independent from Home Assistant. A Home Assistant integration can later use it as a thin adapter.

This project is not affiliated with, endorsed by, or sponsored by MVG, MVV, or Stadtwerke München.

Endpoint Source

The endpoint shapes in this package are based on network traffic captured from the official MVG website with Chrome DevTools MCP. External client implementations and the legacy integration are not used as references.

See docs/endpoint-discovery.md for the captured browser calls and docs/home-assistant-request-strategy.md for Home Assistant request sharing and backoff guidance.

Station Schedule Catalog

MunichTransportClient.station_schedules(global_id) returns the station timetable PDF entries shown on the MVG station page's "Infos" tab. These entries include MVG line/direction variants and temporary validity text, such as construction termini.

The station schedule catalog is separate from live departures. Use it for stable user-selectable line/direction options, and use departures() for current realtime results. MVG does not expose every operator through this catalog; for example, S-Bahn lines can appear in lines() and departures() without appearing in station_schedules().

Direction Grouping

MVG schedule PDF filenames include a schedule code:

U3_H_BP_52.pdf
U3_I_BP_52.pdf
U3_R_BP_51.pdf
U3_S_BP_51.pdf

The library parses this into StationSchedule.schedule_code, station_abbreviation, stop_number, and direction_key. Temporary variants are normalized so H and I share direction key H, while R and S share direction key R.

Use MunichTransportClient.station_direction_groups(global_id) to build rich user-selectable line/direction groups:

groups = await client.station_direction_groups("de:09162:410")
for group in groups:
    print(group.line_label, group.direction_key, group.directions)

For integration config flows, station_direction_options() returns a compact shape with a stable id and cleaned direction strings. It intentionally does not format UI text; adapters such as Home Assistant should localize and render labels themselves.

options = await client.station_direction_options("de:09162:410")
for option in options:
    label = f"{option.line_label} -> {' / '.join(option.directions)}"
    print(option.id, label)

For Bonner Platz this produces two U3 options:

SUBWAY:U3:H  U3 -> Fürstenried West / Sendlinger Tor / Fürstenried West
SUBWAY:U3:R  U3 -> Moosach Bf / Implerstraße / Moosach Bf

If the integration already has a station abbreviation from Station.abbreviation, it can avoid a station metadata request:

options = await client.station_direction_options_by_abbreviation("BP")
schedules = await client.station_schedules_by_abbreviation("BP")

At runtime, fetch live departures and match the stored selector against Departure.line.label and Departure.direction_key. The raw MVG lineId is also exposed as Departure.line_id.

selected = options[0]

departures = await client.departures("de:09162:410")
matching = [
    departure
    for departure in departures
    if departure.line.label == selected.line_label
    and departure.direction_key == selected.direction_key
]

Development

uv sync
uv run pytest
uv run ruff check .
uv run mypy

Live endpoint smoke test:

uv run python scripts/smoke_mvg.py

Bounded probe for transient response headers:

uv run python scripts/probe_retry_after.py --max-attempts 100 --delay 1.0