Actually _use_ the assign,update fields!

CHANGES.rst

@@ -1,6 +1,12 @@
 Changelog
 ~~~~~~~~~
 
+0.0.6
+^^^^^
+
+- fix functools.update_wrapper emulation in black_magic.decorator.wraps().
+  (was supported but not used beforehand)
+
 0.0.5
 ^^^^^
 

black_magic/decorator.py

@@ -58,16 +58,15 @@ def from_function(cls, function, signature=None):
         else:
             funcname = None
 
-        def has(attr):
-            return hasattr(function, attr)
-
-        assign = list(filter(has, ('__module__', '__name__', '__qualname__',
-                                   '__doc__', '__annotations__')))
+        assign = dict((attr, getattr(function, attr))
+                      for attr in ('__module__', '__name__', '__qualname__',
+                                   '__doc__', '__annotations__')
+                      if hasattr(function, attr))
         update = {'__dict__': function.__dict__}
 
         return cls(signature or compat.signature(function),
-                   funcname,
-                   filename)
+                   funcname=funcname, filename=filename,
+                   assign=assign, update=update)
 
     def decorate(self, callback):
         """

setup.py

@@ -21,7 +21,7 @@
 # invoke distutils
 setup(
     name='black-magic',
-    version='0.0.5',
+    version='0.0.6',
     description='Decorator utility that operates on black magic',
     long_description=long_description,
     author='Thomas Gläßle',