[format.python] initial formatting of the python code

This patch was generated by black [1]::

    make format.python

[1] https://github.com/psf/black

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searxng_extra/update/update_currencies.py

@@ -85,9 +85,7 @@ def add_currency_label(db, label, iso4217, language):
 
 
 def wikidata_request_result_iterator(request):
-    result = wikidata.send_wikidata_query(
-        request.replace('%LANGUAGES_SPARQL%', LANGUAGES_SPARQL)
-    )
+    result = wikidata.send_wikidata_query(request.replace('%LANGUAGES_SPARQL%', LANGUAGES_SPARQL))
     if result is not None:
         for r in result['results']['bindings']:
             yield r
@@ -151,5 +149,6 @@ def main():
     with open(get_filename(), 'w', encoding='utf8') as f:
         json.dump(db, f, ensure_ascii=False, indent=4)
 
+
 if __name__ == '__main__':
     main()