require decorator

anki/hooks.py

@@ -13,13 +13,7 @@
 automatically but can be called with _old().
 """
 
-import functools
-
-try:
-    # optional: like functools.wraps, but signature-preserving
-    import decorator
-except ImportError:
-    decorator = None
+import decorator
 
 # Hooks
 ##############################################################################
@@ -68,9 +62,6 @@ def repl(*args, **kwargs):
         else:
             return new(_old=old, *args, **kwargs)
 
-    if decorator is None:
-        return functools.wraps(repl)
-
     def decorator_wrapper(f, *args, **kwargs):
         return repl(*args, **kwargs)