Revert "Revert "pylint: upgrade to 1.3.1""

third_party/logilab/astroid/__init__.py

+# 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 astroid.
+#
+# astroid 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.
+#
+# astroid 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 astroid. If not, see <http://www.gnu.org/licenses/>.
+"""Python Abstract Syntax Tree New Generation
+
+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 extends class defined in the python's _ast module with some
+additional methods and attributes. Instance attributes are added by a
+builder object, which can either generate extended ast (let's call
+them astroid ;) by visiting an existent ast tree or by inspecting living
+object. Methods are added by monkey patching ast classes.
+
+Main modules are:
+
+* nodes and scoped_nodes for more information about methods and
+  attributes added to different node classes
+
+* the manager contains a high level object to get astroid trees from
+  source files and living objects. It maintains a cache of previously
+  constructed tree for quick access
+
+* builder contains the class responsible to build astroid trees
+"""
+__doctype__ = "restructuredtext en"
+
+import sys
+import re
+from operator import attrgetter
+
+# WARNING: internal imports order matters !
+
+# make all exception classes accessible from astroid package
+from astroid.exceptions import *
+
+# make all node classes accessible from astroid package
+from astroid.nodes import *
+
+# trigger extra monkey-patching
+from astroid import inference
+
+# more stuff available
+from astroid import raw_building
+from astroid.bases import YES, Instance, BoundMethod, UnboundMethod
+from astroid.node_classes import are_exclusive, unpack_infer
+from astroid.scoped_nodes import builtin_lookup
+
+# make a manager instance (borg) as well as Project and Package classes
+# accessible from astroid package
+from astroid.manager import AstroidManager, Project
+MANAGER = AstroidManager()
+del AstroidManager
+
+# transform utilities (filters and decorator)
+
+class AsStringRegexpPredicate(object):
+    """Class to be used as predicate that may be given to `register_transform`
+
+    First argument is a regular expression that will be searched against the `as_string`
+    representation of the node onto which it's applied.
+
+    If specified, the second argument is an `attrgetter` expression that will be
+    applied on the node first to get the actual node on which `as_string` should
+    be called.
+    """
+    def __init__(self, regexp, expression=None):
+        self.regexp = re.compile(regexp)
+        self.expression = expression
+
+    def __call__(self, node):
+        if self.expression is not None:
+            node = attrgetter(self.expression)(node)
+        return self.regexp.search(node.as_string())
+
+def inference_tip(infer_function):
+    """Given an instance specific inference function, return a function to be
+    given to MANAGER.register_transform to set this inference function.
+
+    Typical usage
+
+    .. sourcecode:: python
+
+       MANAGER.register_transform(CallFunc, inference_tip(infer_named_tuple),
+                                  AsStringRegexpPredicate('namedtuple', 'func'))
+    """
+    def transform(node, infer_function=infer_function):
+        node._explicit_inference = infer_function
+        return node
+    return transform
+
+# load brain plugins
+from os import listdir
+from os.path import join, dirname
+BRAIN_MODULES_DIR = join(dirname(__file__), 'brain')
+if BRAIN_MODULES_DIR not in sys.path:
+    # add it to the end of the list so user path take precedence
+    sys.path.append(BRAIN_MODULES_DIR)
+# load modules in this directory
+for module in listdir(BRAIN_MODULES_DIR):
+    if module.endswith('.py'):
+        __import__(module[:-3])