Enables perspective-based dynamic messaging.

A VBFC (value by function call) is an encapsulation of a dynamic method invocation. VBFCs can be passed to certain methods that traditionally would accept static strings. For example, a VBFC could be passed to setLongDescription, thereby enabling the long description to change dynamically depending on some factory. This effect could also be achieved by overriding getLongDescription and dynamically generating the returned string each time, but simply passing a VBFC to setLongDescription usually will represent a simpler solution. Note that not all methods support VBFC's. The documentation for each method in question should be consulted to determine if it provides VBFC support. The first argument to the constructor should be the method name, followed by the arguments to be passed to the method. VBFCs can be nested.

__call__ ( self )

__init__ (
        self,
        callableObject,
        *arguments,
        )