Use decorator syntax for getters and setters

Author: Eugene Eeo

fibers/_pyfibers.py

@@ -56,9 +56,12 @@ def _run(c):
     def current(cls):
         return current()
 
-    def _get_parent(self):
+    @property
+    def parent(self):
         return self.__dict__.get('parent', None)
-    def _set_parent(self, value):
+
+    @parent.setter
+    def parent(self, value):
         if not isinstance(value, Fiber):
             raise TypeError('parent must be a Fiber')
         if value._ended:
@@ -67,9 +70,6 @@ def _set_parent(self, value):
             raise ValueError('parent cannot be on a different thread')
         self.__dict__['parent'] = value
 
-    parent = property(_get_parent, _set_parent)
-    del _get_parent, _set_parent
-
     def switch(self, value=None):
         if self._ended:
             raise error('Fiber has ended')