Python 3 AST manipulator

 astor is designed to allow easy manipulation of Python source via the AST.
 .
 There are some other similar libraries, but astor focuses on the following
 areas:
 .
  - Round-trip back to Python via Armin Ronacher's codegen.py module:
    - Modified AST doesn't need linenumbers, ctx, etc. or otherwise be directly
      compileable
 .
  - Dump pretty-printing of AST
    - Harder to read than round-tripped code, but more accurate to figure out
      what is going on.
    - Easier to read than dump from built-in AST module
 .
  - Non-recursive treewalk
    - Sometimes you want a recursive treewalk (and astor supports that, starting
      at any node on the tree), but sometimes you don't need to do that. astor
      doesn't require you to explicitly visit sub-nodes unless you want to:
    - You can add code that executes before a node's children are visited,
      and/or
    - You can add code that executes after a node's children are visited, and/or
    - You can add code that executes and keeps the node's children from being
      visited (and optionally visit them yourself via a recursive call)
    - Write functions to access the tree based on object names and/or attribute
      names
    - Enjoy easy access to parent node(s) for tree rewriting
 .
 This package provides Python 3 module bindings only.