Quiz — Visitor Pattern

A subclass of ast.NodeVisitor defines only visit_Call and is used to visit a parsed program. Which statements are true?

An AttributeError is raised at the first node that is not a call

A call nested inside another call is found, if visit_Call calls generic_visit

Each ast node class must define an accept method for the visitor to work

For a node that is not a call, generic_visit runs and visits the node's children