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annotate pylearn/shared/layers/util.py @ 1496:93b8373c6735

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Prefix loggers with 'pylearn.' to ensure there is no conflict when using Pylearn code within another library
author Olivier Delalleau <delallea@iro>
date Mon, 22 Aug 2011 11:28:48 -0400
parents bf2f71084d59
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rev   line source
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1 """A few little internal functions"""
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2 import logging
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3
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4 def update_locals(obj, dct):
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5 if 'self' in dct:
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6 del dct['self']
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7 obj.__dict__.update(dct)
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8
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9 def LogFn(f):
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10 def rval(*args):
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11 f(' '.join(str(a) for a in args))
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12 return staticmethod(rval)
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13
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14 def add_logging(cls, name=None, level=None):
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15 """ Add logging functions to a class: self._debug, self._info, self._warn, self._warning,
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16 self._error.
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17
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18 All of these functions has the same signature. They accept a variable number of positional
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19 arguments, and print them all casted to string (and concatenated with a ' '.)
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20
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21 :type name: str
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22 :param name: the name of the logger.
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23
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24 :type level: None, str, type(logging.INFO)
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25 :param level: a logging level (e.g. logging.INFO), or the name of a logging level (e.g
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26 'INFO'). If level is None, then this function doesn't set the logging level.
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27
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28 """
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29 if name is None:
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93b8373c6735 Prefix loggers with 'pylearn.' to ensure there is no conflict when using Pylearn code within another library
Olivier Delalleau <delallea@iro>
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30 name = "pylearn.shared.layers.%s" % cls.__name__
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31 cls._logger = logging.getLogger(name)
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32 if level:
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33 try:
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34 level = getattr(logging, level)
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35 except:
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36 pass
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37 cls._logger.setLevel(level)
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38
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39 cls._debug = LogFn(cls._logger.debug)
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40 cls._info = LogFn(cls._logger.info)
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41 cls._warn = cls._warning = LogFn(cls._logger.warn)
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42 cls._error = LogFn(cls._logger.error)
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43 cls._critical = LogFn(cls._logger.critical)
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44 cls._fatal = LogFn(cls._logger.fatal)