Add a warning if the current version of python is not 2.5

presubmit_canned_checks.py

 # Copyright (c) 2010 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.
 
 """Generic presubmit checks that can be reused by other presubmit checks."""
 
 
 ### Description checks
 
 def CheckChangeHasTestField(input_api, output_api):
@@ skipping 580 matching lines @@
       result = e.code
     except ImportError:
       if input_api.platform == 'win32':
         return [output_api.PresubmitNotifyResult(
           'Warning: Can\'t run pylint because it is not installed. Please '
           'install manually\n'
           'Cannot do static analysis of python files.')]
       return [output_api.PresubmitError(
           'Please install pylint with "sudo apt-get install python-setuptools; '
           'sudo easy_install pylint"\n'
+          'or visit http://pypi.python.org/pypi/setuptools.\n'
           'Cannot do static analysis of python files.')]
     if result:
       if input_api.is_committing:
         error_type = output_api.PresubmitError
       else:
         error_type = output_api.PresubmitPromptWarning
       return [error_type('Fix pylint errors first.')]
     return []
   finally:
     warnings.filterwarnings('default', category=DeprecationWarning)
@@ skipping 288 matching lines @@
       input_api, output_api, source_file_filter=text_files))
   results.extend(input_api.canned_checks.CheckSvnForCommonMimeTypes(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckLicense(
       input_api, output_api, license_header, source_file_filter=sources))
   results.extend(_CheckConstNSObject(
       input_api, output_api, source_file_filter=sources))
   results.extend(_CheckSingletonInHeaders(
       input_api, output_api, source_file_filter=sources))
   return results