doc/core/howto/listings/process/trueandfalse.py

   1 from twisted.internet import utils, reactor
   2
   3 def printTrueValue(val):
   4     print "/bin/true exits with rc=%d" % val
   5     output = utils.getProcessValue('/bin/false')
   6     output.addCallback(printFalseValue)
   7
   8 def printFalseValue(val):
   9     print "/bin/false exits with rc=%d" % val
  10     reactor.stop()
  11
  12 output = utils.getProcessValue('/bin/true')
  13 output.addCallback(printTrueValue)
  14 reactor.run()