[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/spotify.py

@@ -42,9 +42,10 @@ def request(query, params):
     r = http_post(
         'https://accounts.spotify.com/api/token',
         data={'grant_type': 'client_credentials'},
-        headers={'Authorization': 'Basic ' + base64.b64encode(
-            "{}:{}".format(api_client_id, api_client_secret).encode()
-        ).decode()}
+        headers={
+            'Authorization': 'Basic '
+            + base64.b64encode("{}:{}".format(api_client_id, api_client_secret).encode()).decode()
+        },
     )
     j = loads(r.text)
     params['headers'] = {'Authorization': 'Bearer {}'.format(j.get('access_token'))}
@@ -63,18 +64,12 @@ def response(resp):
         if result['type'] == 'track':
             title = result['name']
             url = result['external_urls']['spotify']
-            content = '{} - {} - {}'.format(
-                result['artists'][0]['name'],
-                result['album']['name'],
-                result['name'])
+            content = '{} - {} - {}'.format(result['artists'][0]['name'], result['album']['name'], result['name'])
 
             embedded = embedded_url.format(audioid=result['id'])
 
             # append result
-            results.append({'url': url,
-                            'title': title,
-                            'embedded': embedded,
-                            'content': content})
+            results.append({'url': url, 'title': title, 'embedded': embedded, 'content': content})
 
     # return results
     return results