Cleanup pylint errors

PRESUBMIT.py

 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 
 """Top-level presubmit script for GYP.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl.
 """
 
 
 PYLINT_BLACKLIST = [
     # TODO: fix me.
     # From SCons, not done in google style.
     'test/lib/TestCmd.py',
     'test/lib/TestCommon.py',
     'test/lib/TestGyp.py',
 ]
 
 
 PYLINT_DISABLED_WARNINGS = [
     # TODO: fix me.
     # Many tests include modules they don't use.
     'W0611',
+    # Possible unbalanced tuple unpacking with sequence.
+    'W0632',
+    # Attempting to unpack a non-sequence.
+    'W0633',
     # Include order doesn't properly include local files?
     'F0401',
     # Some use of built-in names.
     'W0622',
     # Some unused variables.
     'W0612',
     # Operator not preceded/followed by space.
     'C0323',
     'C0322',
     # Unnecessary semicolon.
     'W0301',
     # Unused argument.
     'W0613',
     # String has no effect (docstring in wrong place).
     'W0105',
+    # map/filter on lambda could be replaced by comprehension.
+    'W0110',
+    # Use of eval.
+    'W0123',
     # Comma not followed by space.
     'C0324',
     # Access to a protected member.
     'W0212',
     # Bad indent.
     'W0311',
     # Line too long.
     'C0301',
     # Undefined variable.
     'E0602',
     # Not exception type specified.
     'W0702',
     # No member of that name.
     'E1101',
     # Dangerous default {}.
     'W0102',
+    # Cyclic import.
+    'R0401',
     # Others, too many to sort.
     'W0201', 'W0232', 'E1103', 'W0621', 'W0108', 'W0223', 'W0231',
     'R0201', 'E0101', 'C0321',
     # ************* Module copy
     # W0104:427,12:_test.odict.__setitem__: Statement seems to have no effect
     'W0104',
 ]
 
 
 def CheckChangeOnUpload(input_api, output_api):
@@ skipping 42 matching lines @@
         output_api,
         black_list=blacklist,
         disabled_warnings=PYLINT_DISABLED_WARNINGS))
   finally:
     sys.path = old_sys_path
   return report
 
 
 def GetPreferredTrySlaves():
   return ['gyp-win32', 'gyp-win64', 'gyp-linux', 'gyp-mac', 'gyp-android']