doc/core/examples/testlogging.py

   1 # Copyright (c) Twisted Matrix Laboratories.
   2 # See LICENSE for details.
   3
   4
   5 """Test logging.
   6
   7 Message should only be printed second time around.
   8 """
   9
  10 from twisted.python import log
  11 from twisted.internet import reactor
  12
  13 import sys, warnings
  14
  15 def test(i):
  16     print "printed", i
  17     log.msg("message %s" % i)
  18     warnings.warn("warning %s" % i)
  19     try:
  20         raise RuntimeError, "error %s" % i
  21     except:
  22         log.err()
  23
  24 def startlog():
  25     log.startLogging(sys.stdout)
  26
  27 def end():
  28     reactor.stop()
  29
  30 # pre-reactor run
  31 test(1)
  32
  33 # after reactor run
  34 reactor.callLater(0.1, test, 2)
  35 reactor.callLater(0.2, startlog)
  36
  37 # after startLogging
  38 reactor.callLater(0.3, test, 3)
  39 reactor.callLater(0.4, end)
  40
  41 reactor.run()