[issue16539] Turn off 'No handlers could be found for logger' message

[anatoly techtonik]

anatoly techtonik added the comment:

Forgot to mention that bundled NullHandler doesn't work in Python 2.7 and from what I can see it is not covered with tests for this version.

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "patch.py", line 124, in fromstring
    return PatchSet( StringIO(s) )
  File "patch.py", line 196, in __init__
    self.parse(stream)
  File "patch.py", line 512, in parse
    warning("error: no patch data found!")
  File "C:\Python27\lib\logging\__init__.py", line 1152, in warning
    self._log(WARNING, msg, args, **kwargs)
  File "C:\Python27\lib\logging\__init__.py", line 1258, in _log
    self.handle(record)
  File "C:\Python27\lib\logging\__init__.py", line 1268, in handle
    self.callHandlers(record)
  File "C:\Python27\lib\logging\__init__.py", line 1307, in callHandlers
    if record.levelno >= hdlr.level:
AttributeError: type object 'NullHandler' has no attribute 'level'

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16539>
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