1"""
2$URL: svn+ssh://svn.mems-exchange.org/repos/trunk/durus/logger.py $
3$Id: logger.py 29018 2006-10-31 21:03:13Z rmasse $
4"""
5
6import sys
7from logging import getLogger, StreamHandler, Formatter, INFO
8
9logger = getLogger('durus')
10log = logger.log
11
12def direct_output(file):
13    logger.handlers[:] = []
14    handler = StreamHandler(file)
15    handler.setFormatter(Formatter("%(message)s"))
16    logger.addHandler(handler)
17    logger.propagate = False
18    logger.setLevel(INFO)
19    if file is sys.__stderr__:
20        return
21    if sys.stdout is sys.__stdout__:
22        sys.stdout = file
23    else:
24        log(100, "sys.stdout already customized.")
25    if sys.stderr is sys.__stderr__:
26        sys.stderr = file
27    else:
28        log(100, "sys.stderr already customized.")
29
30if not logger.handlers:
31    direct_output(sys.stderr)
32
33def is_logging(level):
34    return logger.getEffectiveLevel() <= level
35
36