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Socrata provides an API for city open data. For a dataset such as SF crime, see the API tab on top right. That provides you with the dataset identifier. Use the dataset identifier to grab specific tables for a given city_id (data.sfgov.org) - E.g., vw6y-z8j6 for SF 311 data. E.g., tmnf-yvry for SF Police data. 
pip install -qU  sodapy

from langchain_community.document_loaders import OpenCityDataLoader

dataset = "vw6y-z8j6"  # 311 data
dataset = "tmnf-yvry"  # crime data
loader = OpenCityDataLoader(city_id="data.sfgov.org", dataset_id=dataset, limit=2000)

docs = loader.load()

WARNING:root:Requests made without an app_token will be subject to strict throttling limits.

eval(docs[0].page_content)

{'pdid': '4133422003074',
 'incidntnum': '041334220',
 'incident_code': '03074',
 'category': 'ROBBERY',
 'descript': 'ROBBERY, BODILY FORCE',
 'dayofweek': 'Monday',
 'date': '2004-11-22T00:00:00.000',
 'time': '17:50',
 'pddistrict': 'INGLESIDE',
 'resolution': 'NONE',
 'address': 'GENEVA AV / SANTOS ST',
 'x': '-122.420084075249',
 'y': '37.7083109744362',
 'location': {'type': 'Point',
  'coordinates': [-122.420084075249, 37.7083109744362]},
 ':@computed_region_26cr_cadq': '9',
 ':@computed_region_rxqg_mtj9': '8',
 ':@computed_region_bh8s_q3mv': '309'}
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