re-format code to pass flake8

youtube_dl/extractor/weibo.py

@@ -5,7 +5,6 @@ from .common import InfoExtractor
 
 import json
 import random as rnd
-from os import path
 import re
 
 from ..compat import (
@@ -17,6 +16,7 @@ from ..utils import (
     js_to_json,
 )
 
+
 class WeiboIE(InfoExtractor):
     _VALID_URL = r'https?://weibo\.com/[0-9]+/(?P<id>[a-zA-Z0-9]+)'
     _TEST = {
@@ -111,6 +111,7 @@ class WeiboIE(InfoExtractor):
             # TODO more properties (see youtube_dl/extractor/common.py)
         }
 
+
 class WeiboMobileIE(InfoExtractor):
     _VALID_URL = r'https?://m.weibo.cn/status/(?P<id>[0-9]+)(\?.+)?'
     _TEST = {