[mod] searxng_extras - minor improvements

- fix docs/searxng_extra/standalone_searx.py.rst
- add SPDX tag
- pylint standalone_searx.py and update_wikidata_units.py

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

searxng_extra/update/update_ahmia_blacklist.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
 
 # This script saves Ahmia's blacklist for onion sites.
 # More info in https://ahmia.fi/blacklist/

searxng_extra/update/update_currencies.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
 
 import re
 import unicodedata

searxng_extra/update/update_engine_descriptions.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
 
 import json
 from urllib.parse import urlparse

searxng_extra/update/update_external_bangs.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 # lint: pylint
+# SPDX-License-Identifier: AGPL-3.0-or-later
 """
 Update searx/data/external_bangs.json using the duckduckgo bangs.
 

searxng_extra/update/update_firefox_version.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
 
 import json
 import requests
@@ -16,7 +17,7 @@ NORMAL_REGEX = re.compile('^[0-9]+\.[0-9](\.[0-9])?$')
 # BETA_REGEX = re.compile('.*[0-9]b([0-9\-a-z]+)$')
 # ESR_REGEX = re.compile('^[0-9]+\.[0-9](\.[0-9])?esr$')
 
-# 
+#
 useragents = {
     "versions": (),
     "os": ('Windows NT 10.0; WOW64',

searxng_extra/update/update_languages.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
 
 # This script generates languages.py from intersecting each engine's supported languages.
 #

searxng_extra/update/update_osm_keys_tags.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 # lint: pylint
-# pylint: disable=missing-function-docstring
+# SPDX-License-Identifier: AGPL-3.0-or-later
 """Fetch OSM keys and tags.
 
 To get the i18n names, the scripts uses `Wikidata Query Service`_ instead of for

searxng_extra/update/update_pygments.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
 """
 Update pygments style
 

searxng_extra/update/update_wikidata_units.py

@@ -1,4 +1,7 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# lint: pylint
+# pylint: disable=missing-module-docstring
 
 import json
 import collections
@@ -51,5 +54,5 @@ def get_wikidata_units_filename():
     return join(join(searx_dir, "data"), "wikidata_units.json")
 
 
-with open(get_wikidata_units_filename(), 'w') as f:
+with open(get_wikidata_units_filename(), 'w', encoding="utf8") as f:
     json.dump(get_data(), f, indent=4, ensure_ascii=False)