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searxng/searx_extra/update/update_wikidata_units.py
Alexandre Flament b8cd326464 Add searx_extra package
Split the utils directory into:
* searx_extra contains update scripts, standalone_searx.py
* utils contains the files to build and setup searx.
2021-03-04 11:59:14 +01:00

54 lines
1.5 KiB
Python
Executable file

#!/usr/bin/env python
import json
import collections
# set path
from os.path import join
from searx import searx_dir
from searx.engines.wikidata import send_wikidata_query
# the response contains duplicate ?item with the different ?symbol
# "ORDER BY ?item DESC(?rank) ?symbol" provides a deterministic result
# even if a ?item has different ?symbol of the same rank.
# A deterministic result
# see:
# * https://www.wikidata.org/wiki/Help:Ranking
# * https://www.mediawiki.org/wiki/Wikibase/Indexing/RDF_Dump_Format ("Statement representation" section)
# * https://w.wiki/32BT
# see the result for https://www.wikidata.org/wiki/Q11582
# there are multiple symbols the same rank
SARQL_REQUEST = """
SELECT DISTINCT ?item ?symbol
WHERE
{
?item wdt:P31/wdt:P279 wd:Q47574 .
?item p:P5061 ?symbolP .
?symbolP ps:P5061 ?symbol ;
wikibase:rank ?rank .
FILTER(LANG(?symbol) = "en").
}
ORDER BY ?item DESC(?rank) ?symbol
"""
def get_data():
results = collections.OrderedDict()
response = send_wikidata_query(SARQL_REQUEST)
for unit in response['results']['bindings']:
name = unit['item']['value'].replace('http://www.wikidata.org/entity/', '')
unit = unit['symbol']['value']
if name not in results:
# ignore duplicate: always use the first one
results[name] = unit
return results
def get_wikidata_units_filename():
return join(join(searx_dir, "data"), "wikidata_units.json")
with open(get_wikidata_units_filename(), 'w') as f:
json.dump(get_data(), f, indent=4, ensure_ascii=False)