[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>

searx/engines/docker_hub.py

@@ -9,13 +9,13 @@ from urllib.parse import urlencode
 from dateutil import parser
 
 about = {
-     "website": 'https://hub.docker.com',
-     "wikidata_id": 'Q100769064',
-     "official_api_documentation": 'https://docs.docker.com/registry/spec/api/',
-     "use_official_api": True,
-     "require_api_key": False,
-     "results": 'JSON',
- }
+    "website": 'https://hub.docker.com',
+    "wikidata_id": 'Q100769064',
+    "official_api_documentation": 'https://docs.docker.com/registry/spec/api/',
+    "use_official_api": True,
+    "require_api_key": False,
+    "results": 'JSON',
+}
 
 categories = ['it']  # optional
 paging = True
@@ -23,6 +23,7 @@ paging = True
 base_url = "https://hub.docker.com/"
 search_url = base_url + "api/content/v1/products/search?{query}&type=image&page_size=25"
 
+
 def request(query, params):
 
     params['url'] = search_url.format(query=urlencode(dict(q=query, page=params["pageno"])))
@@ -30,6 +31,7 @@ def request(query, params):
 
     return params
 
+
 def response(resp):
     '''post-response callback
     resp: requests response object
@@ -53,12 +55,8 @@ def response(resp):
                 result["url"] = base_url + "r/" + item.get('slug', "")
             result["title"] = item.get("name")
             result["content"] = item.get("short_description")
-            result["publishedDate"] = parser.parse(
-                item.get("updated_at") or item.get("created_at")
-            )
-            result["thumbnail"] = (
-                item["logo_url"].get("large") or item["logo_url"].get("small")
-            )
+            result["publishedDate"] = parser.parse(item.get("updated_at") or item.get("created_at"))
+            result["thumbnail"] = item["logo_url"].get("large") or item["logo_url"].get("small")
             results.append(result)
 
     return results