text: # copyright 2003-2013 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
  # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
  #
  # This file is part of logilab-astng.
  #
  # logilab-astng is free software: you can redistribute it and/or modify it
  # under the terms of the GNU Lesser General Public License as published by the
  # Free Software Foundation, either version 2.1 of the License, or (at your
  # option) any later version.
  #
  # logilab-astng is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
  # for more details.
  #
  # You should have received a copy of the GNU Lesser General Public License along
  # with logilab-astng. If not, see <http://www.gnu.org/licenses/>.
  """
  on all nodes :
   .is_statement, returning true if the node should be considered as a
    statement node
   .root(), returning the root node of the tree (i.e. a Module)
   .previous_sibling(), returning previous sibling statement node
   .next_sibling(), returning next sibling statement node
   .statement(), returning the first parent node marked as statement node
   .frame(), returning the first node defining a new local scope (i.e.
    Module, Function or Class)
   .set_local(name, node), define an identifier <name> on the first parent frame,
    with the node defining it. This is used by the astng builder and should not
    be used from out there.
  
  on From and Import :
   .real_name(name),
  
  
  """
  
  __docformat__ = "restructuredtext en"
  
  from logilab.astng.node_classes import Arguments, AssAttr, Assert, Assign, \
      AssName, AugAssign, Backquote, BinOp, BoolOp, Break, CallFunc, Compare, \
      Comprehension, Const, Continue, Decorators, DelAttr, DelName, Delete, \
      Dict, Discard, Ellipsis, EmptyNode, ExceptHandler, Exec, ExtSlice, For, \
      From, Getattr, Global, If, IfExp, Import, Index, Keyword, \
      List, Name, Nonlocal, Pass, Print, Raise, Return, Set, Slice, Starred, Subscript, \
      TryExcept, TryFinally, Tuple, UnaryOp, While, With, Yield, \
      const_factory
  from logilab.astng.scoped_nodes import Module, GenExpr, Lambda, DictComp, \
      ListComp, SetComp, Function, Class
  
  ALL_NODE_CLASSES = (
      Arguments, AssAttr, Assert, Assign, AssName, AugAssign,
      Backquote, BinOp, BoolOp, Break,
      CallFunc, Class, Compare, Comprehension, Const, Continue,
      Decorators, DelAttr, DelName, Delete,
      Dict, DictComp, Discard,
      Ellipsis, EmptyNode, ExceptHandler, Exec, ExtSlice,
      For, From, Function,
      Getattr, GenExpr, Global,
      If, IfExp, Import, Index,
      Keyword,
      Lambda, List, ListComp,
      Name, Nonlocal,
      Module,
      Pass, Print,
      Raise, Return,
      Set, SetComp, Slice, Starred, Subscript,
      TryExcept, TryFinally, Tuple,
      UnaryOp,
      While, With,
      Yield,
      )
  
  