Check in the thirdparty libs needed for webkitpy.

Tools/Scripts/webkitpy/thirdparty/logilab/astng/README

Index: Tools/Scripts/webkitpy/thirdparty/logilab/astng/README
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+ASTNG
+=====
+
+What's this ?
+-------------
+
+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.
+
+Main modules are:
+
+* `bases`, `node_classses` and `scoped_nodes` contain the classes for the
+  different type of nodes of the tree.
+
+* the `manager` contains a high level object to get astng trees from
+  source files and living objects. It maintains a cache of previously
+  constructed tree for quick access
+
+
+Installation
+------------
+
+Extract the tarball, jump into the created directory and run ::
+
+	python setup.py install
+
+For installation options, see ::
+
+	python setup.py install --help
+
+
+If you have any questions, please mail the
+python-project@lists.logilab.org mailing list for support. See
+http://lists.logilab.org/mailman/listinfo/python-projects for
+subscription information and archives.
+
+Test
+----
+
+Tests are in the 'test' subdirectory. To launch the whole tests suite
+at once, you may use the 'pytest' utility from logilab-common (simply
+type 'pytest' from within this directory) or if you're running python
+>= 2.7, using discover, for instance::
+
+  python -m unittest discover -p "unittest*.py"