gistfile1.py

import py
import tokenize
import token
import StringIO
from pypy.interpreter.pyparser import parser, metaparser, pygram, pyparse
from pypy.interpreter.pyparser.test.test_metaparser import MyGrammar
from pypy.interpreter.pyparser import pytokenizer
from pprint import pprint
from pypy.interpreter.astcompiler.astbuilder import ASTBuilder
from pypy.objspace.fake.objspace import FakeObjSpace

space = FakeObjSpace()

p = pyparse.PythonParser(space)
info = pyparse.CompileInfo("<test>", 'exec')

code = """

a = (1,"" "", lambda x: 1, ""\\
	'')

"""
cst = p.parse_source(code, info)

t = ASTBuilder(space, cst, info)

q = t.build_ast()

def traverse(node):
	while(node.children):
		node = node.children[-1]
	return node

print q
import IPython; IPython.embed()