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app.py
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| 1 |
+
# Deutsche Bahn Timetable Gradio App
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| 2 |
+
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| 3 |
+
## app.py
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| 4 |
+
|
| 5 |
+
```python
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| 6 |
+
import gradio as gr
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| 7 |
+
import requests
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| 8 |
+
from datetime import datetime
|
| 9 |
+
import xml.etree.ElementTree as ET
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| 10 |
+
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| 11 |
+
# EVA-Nummern für Hauptbahnhöfe
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| 12 |
+
STATION_EVA = {
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| 13 |
+
'frankfurt': '8000105',
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| 14 |
+
'berlin': '8011160',
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| 15 |
+
'münchen': '8000261',
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| 16 |
+
'hamburg': '8002549',
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| 17 |
+
'köln': '8000207',
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| 18 |
+
'stuttgart': '8000096',
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| 19 |
+
'düsseldorf': '8000085',
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| 20 |
+
'dortmund': '8000080',
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| 21 |
+
'essen': '8000098',
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| 22 |
+
'leipzig': '8010205',
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| 23 |
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'bremen': '8000050',
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| 24 |
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'dresden': '8010085',
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'hannover': '8000152',
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| 26 |
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'nürnberg': '8000284',
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'duisburg': '8000086',
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| 28 |
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}
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| 29 |
+
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| 30 |
+
def get_eva_number(station_name):
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| 31 |
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"""Wandelt Stationsnamen in EVA-Nummer um"""
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| 32 |
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normalized = station_name.lower().strip()
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| 33 |
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return STATION_EVA.get(normalized)
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| 34 |
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def search_connections(departure, destination, client_id, api_key):
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| 36 |
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"""Sucht Verbindungen zwischen zwei Bahnhöfen"""
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| 37 |
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if not departure or not destination:
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return "❌ Bitte Abfahrts- und Zielort eingeben"
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| 40 |
+
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| 41 |
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if not client_id or not api_key:
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return "❌ Bitte Client ID und API Key eingeben"
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+
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# EVA-Nummer für Abfahrtsort ermitteln
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| 45 |
+
departure_eva = get_eva_number(departure)
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| 46 |
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if not departure_eva:
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| 47 |
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available = ', '.join(STATION_EVA.keys())
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| 48 |
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return f"❌ Station '{departure}' nicht gefunden.\n\nVerfügbare Stationen: {available}"
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| 49 |
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| 50 |
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# Aktuelles Datum und Stunde
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| 51 |
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now = datetime.now()
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| 52 |
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datum = now.strftime("%y%m%d") # YYMMDD
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| 53 |
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stunde = now.strftime("%H") # HH
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| 54 |
+
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| 55 |
+
# API-Aufruf
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| 56 |
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url = f"https://apis.deutschebahn.com/db-api-marketplace/apis/timetables/v1/plan/{departure_eva}/{datum}/{stunde}"
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| 57 |
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| 58 |
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headers = {
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| 59 |
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"DB-Client-Id": client_id,
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| 60 |
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"DB-Api-Key": api_key,
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"accept": "application/xml"
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| 62 |
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}
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try:
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response = requests.get(url, headers=headers, timeout=10)
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| 66 |
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if response.status_code != 200:
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| 68 |
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return f"❌ API Fehler: {response.status_code} - {response.text[:200]}"
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| 69 |
+
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+
# XML parsen
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root = ET.fromstring(response.content)
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| 72 |
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connections = []
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| 73 |
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# Alle Züge durchgehen
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| 75 |
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for train in root.findall('.//s'):
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| 76 |
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# Abfahrtsinformationen
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| 77 |
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dp = train.find('dp')
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| 78 |
+
if dp is None:
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| 79 |
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continue
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| 80 |
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| 81 |
+
# Route des Zugs
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| 82 |
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path = dp.get('ppth', '')
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| 83 |
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| 84 |
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# Prüfen ob Zielort in Route enthalten ist
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| 85 |
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if destination.lower() in path.lower():
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train_id = train.get('id', 'Unbekannt')
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| 87 |
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planned_time = dp.get('pt', '')
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platform = dp.get('pp', 'n/a')
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| 89 |
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# Zeit formatieren (von HHMM zu HH:MM)
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| 91 |
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if len(planned_time) == 4:
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+
planned_time = f"{planned_time[:2]}:{planned_time[2:]}"
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# Route formatieren
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route = ' → '.join(path.split('|'))
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connections.append({
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'train': train_id,
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'time': planned_time,
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'platform': platform,
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| 101 |
+
'route': route
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})
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# Ergebnisse formatieren
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+
if not connections:
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return f"ℹ️ Keine direkten Verbindungen von {departure.title()} nach {destination.title()} gefunden.\n\nHinweis: Die App sucht nur nach direkten Verbindungen in der nächsten Stunde."
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| 107 |
+
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| 108 |
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result = f"🚆 Verbindungen von {departure.title()} nach {destination.title()}\n"
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| 109 |
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result += f"📅 {now.strftime('%d.%m.%Y')} ab {now.strftime('%H:00')} Uhr\n\n"
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| 110 |
+
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| 111 |
+
for i, conn in enumerate(connections[:10], 1):
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| 112 |
+
result += f"─────────────────────────────────\n"
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| 113 |
+
result += f"{i}. {conn['train']}\n"
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| 114 |
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result += f" ⏰ Abfahrt: {conn['time']} Uhr\n"
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| 115 |
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result += f" 🚉 Gleis: {conn['platform']}\n"
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| 116 |
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result += f" 🗺️ Route: {conn['route']}\n\n"
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| 117 |
+
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| 118 |
+
return result
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| 119 |
+
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| 120 |
+
except requests.exceptions.Timeout:
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| 121 |
+
return "❌ Zeitüberschreitung bei der API-Anfrage"
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| 122 |
+
except requests.exceptions.RequestException as e:
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| 123 |
+
return f"❌ Netzwerkfehler: {str(e)}"
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| 124 |
+
except ET.ParseError as e:
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| 125 |
+
return f"❌ Fehler beim Parsen der XML-Antwort: {str(e)}"
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| 126 |
+
except Exception as e:
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| 127 |
+
return f"❌ Unerwarteter Fehler: {str(e)}"
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| 128 |
+
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| 129 |
+
# Gradio Interface erstellen
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| 130 |
+
with gr.Blocks(title="Deutsche Bahn Fahrplanauskunft", theme=gr.themes.Soft()) as demo:
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| 131 |
+
gr.Markdown(
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| 132 |
+
"""
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| 133 |
+
# 🚆 Deutsche Bahn Fahrplanauskunft
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| 134 |
+
Finden Sie Zugverbindungen mit der DB Timetable API
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| 135 |
+
"""
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| 136 |
+
)
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| 137 |
+
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| 138 |
+
with gr.Row():
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| 139 |
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with gr.Column():
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| 140 |
+
client_id_input = gr.Textbox(
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| 141 |
+
label="DB Client ID",
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| 142 |
+
placeholder="Ihre Client ID von developers.deutschebahn.com",
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| 143 |
+
type="password"
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| 144 |
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)
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| 145 |
+
api_key_input = gr.Textbox(
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| 146 |
+
label="DB API Key",
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| 147 |
+
placeholder="Ihr API Key",
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| 148 |
+
type="password"
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| 149 |
+
)
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| 150 |
+
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| 151 |
+
with gr.Row():
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| 152 |
+
with gr.Column():
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| 153 |
+
departure_input = gr.Textbox(
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| 154 |
+
label="Abfahrtsort",
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| 155 |
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placeholder="z.B. Frankfurt",
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| 156 |
+
value=""
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| 157 |
+
)
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| 158 |
+
with gr.Column():
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| 159 |
+
destination_input = gr.Textbox(
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| 160 |
+
label="Zielort",
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| 161 |
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placeholder="z.B. Berlin",
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| 162 |
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value=""
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| 163 |
+
)
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| 164 |
+
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| 165 |
+
gr.Markdown("⏰ **Abfahrtszeit:** Jetzt (automatisch)")
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| 166 |
+
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| 167 |
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search_button = gr.Button("🔍 Verbindungen suchen", variant="primary", size="lg")
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| 168 |
+
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| 169 |
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output = gr.Textbox(
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| 170 |
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label="Ergebnisse",
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| 171 |
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lines=20,
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| 172 |
+
max_lines=30
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| 173 |
+
)
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| 174 |
+
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| 175 |
+
gr.Markdown(
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| 176 |
+
f"""
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| 177 |
+
### 📍 Verfügbare Stationen
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| 178 |
+
{', '.join(sorted(STATION_EVA.keys()))}
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| 179 |
+
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| 180 |
+
### ℹ️ Hinweise
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| 181 |
+
- Sie benötigen einen kostenlosen API-Zugang von [DB API Marketplace](https://developers.deutschebahn.com)
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| 182 |
+
- Die App sucht nach direkten Verbindungen in der aktuellen Stunde
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| 183 |
+
- Geben Sie Städtenamen ohne "Hbf" ein (z.B. "Frankfurt" statt "Frankfurt Hbf")
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| 184 |
+
"""
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| 185 |
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)
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| 186 |
+
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| 187 |
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search_button.click(
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| 188 |
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fn=search_connections,
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| 189 |
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inputs=[departure_input, destination_input, client_id_input, api_key_input],
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| 190 |
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outputs=output
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| 191 |
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)
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| 192 |
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| 193 |
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if __name__ == "__main__":
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| 194 |
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demo.launch()
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| 195 |
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```
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| 196 |
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## requirements.txt
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| 198 |
+
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| 199 |
+
```
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| 200 |
+
gradio
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| 201 |
+
requests
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| 202 |
+
```
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| 203 |
+
|
| 204 |
+
## Installation und Verwendung
|
| 205 |
+
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| 206 |
+
1. Erstellen Sie diese beiden Dateien in Ihrem Hugging Face Space
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| 207 |
+
2. Die App startet automatisch
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| 208 |
+
3. Holen Sie sich API-Zugangsdaten von [developers.deutschebahn.com](https://developers.deutschebahn.com)
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| 209 |
+
4. Geben Sie die Zugangsdaten ein und suchen Sie nach Verbindungen
|