Mojo: Add PRESUBMIT.py to mojo/.

mojo/public/tools/bindings/pylib/mojom/parse/parser.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generates a syntax tree from a Mojo IDL file."""
 
 import imp
 import os.path
 import sys
 
-# Disable lint check for finding modules:
-# pylint: disable=F0401
-
 def _GetDirAbove(dirname):
   """Returns the directory "above" this file containing |dirname| (which must
   also be "above" this file)."""
   path = os.path.abspath(__file__)
   while True:
     path, tail = os.path.split(path)
     assert tail
     if tail == dirname:
       return path
 
 try:
   imp.find_module("ply")
 except ImportError:
   sys.path.append(os.path.join(_GetDirAbove("mojo"), "third_party"))
 from ply import lex
 from ply import yacc
 
 from ..error import Error
-import ast
-from lexer import Lexer
+from . import ast
+from .lexer import Lexer
 
 
 _MAX_ORDINAL_VALUE = 0xffffffff
 _MAX_ARRAY_SIZE = 0xffffffff
 
 
-# Disable lint check for exceptions deriving from Exception:
-# pylint: disable=W0710
 class ParseError(Error):
   """Class for errors from the parser."""
 
   def __init__(self, filename, message, lineno=None, snippet=None):
     Error.__init__(self, filename, message, lineno=lineno,
                    addenda=([snippet] if snippet else None))
 
 
 # We have methods which look like they could be functions:
 # pylint: disable=R0201
@@ skipping 319 matching lines @@
 
 def Parse(source, filename):
   lexer = Lexer(filename)
   parser = Parser(lexer, source, filename)
 
   lex.lex(object=lexer)
   yacc.yacc(module=parser, debug=0, write_tables=0)
 
   tree = yacc.parse(source)
   return tree