[ruleporn] fix flake8 warnings (except E501 - line too long)

youtube_dl/extractor/ruleporn.py

@@ -1,10 +1,9 @@
 from __future__ import unicode_literals
 
-import re
-
 from .nuevo import NuevoBaseIE
 from ..utils import int_or_none
 
+
 class RulePornIE(NuevoBaseIE):
     _VALID_URL = r'https?://(?:www\.)?ruleporn\.com/(?:[^/?#&]+/)*(?P<id>[^/?#&]+)'
     _TESTS = [{
@@ -18,7 +17,7 @@ class RulePornIE(NuevoBaseIE):
             'description': 'md5:6d28be231b981fff1981deaaa03a04d5',
             'age_limit': 18,
             'duration': 635.1,
-        }, 
+        },
     }, {
         'url': 'http://ruleporn.com/short-sweet-amateur-milf-sex-action/',
         'md5': '9ec215fe7ecc19323eba42d0f16af054',
@@ -62,7 +61,6 @@ class RulePornIE(NuevoBaseIE):
             r'lovehomeporn\.com/embed/(\d+)', video_url, 'video_id', default=None)
 
         if video_id:
-
             info = self._extract_nuevo(
                 'http://lovehomeporn.com/media/nuevo/econfig.php?key=%s&rp=true' % video_id,
                 video_id)
@@ -72,22 +70,21 @@ class RulePornIE(NuevoBaseIE):
                 'title': title,
                 'description': description,
                 'age_limit': 18
-            }) 
+            })
 
         else:
-
             video_page = self._download_webpage(video_url, display_id)
 
             js_str = self._search_regex(
                 r'var\s+item\s+=\s+({.+(?=};)});', video_page, 'js_str')
 
             js_obj = self._parse_json(js_str, display_id)
-            
+
             video_id = '%s' % js_obj.get('id')
             duration = int_or_none(js_obj.get('video_duration'))
             thumbnail = js_obj.get('url_thumb')
 
-            formats = []            
+            formats = []
             for element_name, format_id in (('url_mp4_lowres', 'ld'), ('url_mp4', 'sd'), ('url_orig', 'hd')):
                 video_url = js_obj.get(element_name)
                 formats.append({
@@ -95,7 +92,7 @@ class RulePornIE(NuevoBaseIE):
                     'format_id': format_id
                 })
             self._check_formats(formats, video_id)
-            
+
             info = {
                 'id': video_id,
                 'display_id': display_id,