The aim of this module is to provide a common base representation of
python source code for projects such as pychecker, pyreverse,
pylint... Well, actually the development of this library is
essentially governed by pylint's needs.
It provides a compatible representation which comes from the _ast
module. It rebuilds the tree generated by the builtin _ast module by
recursively walking down the AST and building an extended ast (let's
call it astng ;). The new node classes have additional methods and
attributes for different usages. They include some support for static
inference and local name scopes. Furthermore, astng builds partial
trees by inspecting living objects.