from ..common import general_m3u8_extractor

Import the definition of __general_m3u8_extractor()__ for the function call on line 64...

flake8 testing of https://github.com/soimort/you-get on Python 3.6.3

$ __flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics__
```
./src/you_get/extractors/longzhu.py:63:20: F821 undefined name 'general_m3u8_extractor'
            urls = general_m3u8_extractor(real_url)
                   ^
1     F821 undefined name 'general_m3u8_extractor'
```

src/you_get/extractors/longzhu.py

@@ -5,6 +5,7 @@ __all__ = ['longzhu_download']
 import json
 from ..common import (
     get_content,
+    general_m3u8_extractor,
     match1,
     print_info,
     download_urls,