Part of nevow.rend View Source View In Hierarchy
Known subclasses: nevow.rend.Fragment
Implements interfaces: nevow.inevow.IContainer
Return a conceptual child; an attribute, or a key, or the result of a function call.
Returns any object; the result may be adapted to IGettable if possible.
Return None if the adaptee does not have a child with the given name.
TODO: Maybe returning None is bad, and .child should just raise whatever exception is natural