Lib/distutils/log.py

   1 """A simple log mechanism styled after PEP 282."""
   2
   3 # This module should be kept compatible with Python 1.5.2.
   4
   5 # The class here is styled after PEP 282 so that it could later be
   6 # replaced with a standard Python logging implementation.
   7
   8 DEBUG = 1
   9 INFO = 2
  10 WARN = 3
  11 ERROR = 4
  12 FATAL = 5
  13
  14 import sys
  15
  16 class Log:
  17
  18     def __init__(self, threshold=WARN):
  19         self.threshold = threshold
  20
  21     def _log(self, level, msg, args):
  22         if level >= self.threshold:
  23             print msg % args
  24             sys.stdout.flush()
  25
  26     def log(self, level, msg, *args):
  27         self._log(level, msg, args)
  28
  29     def debug(self, msg, *args):
  30         self._log(DEBUG, msg, args)
  31
  32     def info(self, msg, *args):
  33         self._log(INFO, msg, args)
  34
  35     def warn(self, msg, *args):
  36         self._log(WARN, msg, args)
  37
  38     def error(self, msg, *args):
  39         self._log(ERROR, msg, args)
  40
  41     def fatal(self, msg, *args):
  42         self._log(FATAL, msg, args)
  43
  44 _global_log = Log()
  45 log = _global_log.log
  46 debug = _global_log.debug
  47 info = _global_log.info
  48 warn = _global_log.warn
  49 error = _global_log.error
  50 fatal = _global_log.fatal
  51
  52 def set_threshold(level):
  53     _global_log.threshold = level
  54
  55 def set_verbosity(v):
  56     if v <= 0:
  57         set_threshold(WARN)
  58     elif v == 1:
  59         set_threshold(INFO)
  60     elif v >= 2:
  61         set_threshold(DEBUG)