Fix override func style and regular usage (encode#7050)

chrisguox · tomchristie · commit cad1b082602c · 2019-11-18T12:30:36.000Z
* style: add space and rm redundant parentheses

* refactor: use super to replace inherit class

* Prefer explicit tuple syntax
diff --git a/rest_framework/relations.py b/rest_framework/relations.py
@@ -47,12 +47,12 @@ class Hyperlink(str):
     in some contexts, or render as a plain URL in others.
     """
     def __new__(cls, url, obj):
-        ret = str.__new__(cls, url)
+        ret = super().__new__(cls, url)
         ret.obj = obj
         return ret
 
     def __getnewargs__(self):
-        return(str(self), self.name,)
+        return (str(self), self.name)
 
     @property
     def name(self):
