[fix] issues reported by pylint

Fix pylint issues from commit (3d96a983)

    [format.python] initial formatting of the python code

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

searx/engines/duckduckgo_images.py

@@ -7,10 +7,10 @@ from json import loads
 from urllib.parse import urlencode
 from searx.exceptions import SearxEngineAPIException
 from searx.engines.duckduckgo import get_region_code
-from searx.engines.duckduckgo import (
+from searx.engines.duckduckgo import (  # pylint: disable=unused-import
     _fetch_supported_languages,
     supported_languages_url,
-)  # NOQA # pylint: disable=unused-import
+)
 from searx.network import get
 
 # about