Add pylint to depot_tools.

third_party/logilab/astng/exceptions.py

Index: third_party/logilab/astng/exceptions.py
diff --git a/third_party/logilab/astng/exceptions.py b/third_party/logilab/astng/exceptions.py
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+++ b/third_party/logilab/astng/exceptions.py
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+# This program 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 of the License, or (at your option) any later
+# version.
+#
+# This program 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
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+# copyright 2003-2010 Sylvain Thenault, all rights reserved.
+# contact mailto:thenault@gmail.com
+#
+# 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/>.
+"""this module contains exceptions used in the astng library
+
+"""
+
+__doctype__ = "restructuredtext en"
+
+class ASTNGError(Exception):
+    """base exception class for all astng related exceptions"""
+
+class ASTNGBuildingException(ASTNGError):
+    """exception class when we are unable to build an astng representation"""
+
+class ResolveError(ASTNGError):
+    """base class of astng resolution/inference error"""
+
+class NotFoundError(ResolveError):
+    """raised when we are unable to resolve a name"""
+
+class InferenceError(ResolveError):
+    """raised when we are unable to infer a node"""
+
+class UnresolvableName(InferenceError):
+    """raised when we are unable to resolve a name"""
+
+class NoDefault(ASTNGError):
+    """raised by function's `default_value` method when an argument has
+    no default value
+    """
+