Revert "check source code: only use compile for failures and pyflakes for warning"

This reverts commit 91bb6bec.

use pylint, at least here

product/ERP5Type/Utils.py

@@ -434,40 +434,6 @@ def checkPythonSourceCode(source_code_str):
   if not source_code_str:
     return []
 
-  try:
-    compile(source_code_str, '<string>', 'exec')
-  except Exception, error:
-    if isinstance(error, SyntaxError):
-      message = {'type': 'F',
-                 'row': error.lineno,
-                 'column': error.offset,
-                 'text': error.message}
-    else:
-      message = {'type': 'F',
-                 'row': -1,
-                 'column': -1,
-                 'text': str(error)}
-
-    return [message]
-
-  import pyflakes.reporter
-  import pyflakes.api
-
-  message_list = []
-  class ERP5FlakesReporter(pyflakes.reporter.Reporter):
-    __init__ = unexpectedError = syntaxError = lambda *args, **kw: None # errors are handled by compile
-    def flake(self, message):
-      message_list.append(
-        {'type': 'W',
-         'row': message.lineno,
-         'column': message.col,
-         'text': message.message % message.message_args })
-
-  pyflakes.api.check(source_code_str, '<string>', ERP5FlakesReporter())
-  return message_list
-
-  # XXX pylint disabled because it is slow
-
   try:
     from pylint.lint import Run
     from pylint.reporters.text import TextReporter