软件包：python3-traits（6.4.3-1）

Manifest typing and reactive programming for Python (Python 3)

The traits package provides a metaclass with special attributes that are called traits. A trait is a type definition that can be used for normal Python object attributes, giving the attributes some additional characteristics:

 * Initialization: A trait attribute can have a default value
 * Validation: A trait attribute is manifestly typed.
 * Delegation: The value of a trait attribute can be contained in another
   object
 * Notification: Setting the value of a trait attribute can fired
   callbacks
 * Visualization: With the TraitsUI package, GUIs can be generated
   automatically from traited objects.

This is the Python 3 version of the package.

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