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ACS5: restrict state_county_blockgroup to 2013+ #169

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ACS5: restrict state_county_blockgroup to 2013+ #169

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6 changes: 5 additions & 1 deletion census/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -353,7 +353,11 @@ def state_county_tract(self, fields, state_fips,
'in': 'state:{} county:{}'.format(state_fips, county_fips),
}, **kwargs)

@supported_years()
# Block group geography wasn't published in the ACS API until 2013; earlier
# years just return "unknown/unsupported geography hierarchy" from the API.
# Restrict the supported years so callers get a clearer UnsupportedYear
# error up front. See #140, #155.
@supported_years(2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013)
def state_county_blockgroup(self, fields, state_fips, county_fips,
blockgroup, tract=None, **kwargs):
geo = {
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