Format code

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

src/univers/versions.py

@@ -160,7 +160,6 @@ def __ge__(self, other):
 
 @attr.s(frozen=True, order=False, hash=True)
 class GenericVersion(Version):
-
     @classmethod
     def is_valid(cls, string):
         # generic implementation ...