Python twisted.internet.defer 模块，setDebugging() 实例源码

def test_errbackWithNoArgsNoDebug(self):
        """
        C{Deferred.errback()} creates a failure from the current Python
        exception.  When Deferred.debug is not set no globals or locals are
        captured in that failure.
        """
        defer.setDebugging(False)
        d = defer.Deferred()
        l = []
        exc = GenericError("Bang")
        try:
            raise exc
        except:
            d.errback()
        d.addErrback(l.append)
        fail = l[0]
        self.assertEqual(fail.value, exc)
        localz, globalz = fail.frames[0][-2:]
        self.assertEqual([], localz)
        self.assertEqual([], globalz)

def test_errbackWithNoArgs(self):
        """
        C{Deferred.errback()} creates a failure from the current Python
        exception.  When Deferred.debug is set globals and locals are captured
        in that failure.
        """
        defer.setDebugging(True)
        d = defer.Deferred()
        l = []
        exc = GenericError("Bang")
        try:
            raise exc
        except:
            d.errback()
        d.addErrback(l.append)
        fail = l[0]
        self.assertEqual(fail.value, exc)
        localz, globalz = fail.frames[0][-2:]
        self.assertNotEqual([], localz)
        self.assertNotEqual([], globalz)

def test_errorInCallbackCapturesVarsWhenDebugging(self):
        """
        An error raised by a callback creates a Failure.  The Failure captures
        locals and globals if and only if C{Deferred.debug} is set.
        """
        d = defer.Deferred()
        d.callback(None)
        defer.setDebugging(True)
        def raiseError(ignored):
            raise GenericError("Bang")
        d.addCallback(raiseError)
        l = []
        d.addErrback(l.append)
        fail = l[0]
        localz, globalz = fail.frames[0][-2:]
        self.assertNotEqual([], localz)
        self.assertNotEqual([], globalz)

def _initialDebugSetup(config):
    # do this part of debug setup first for easy debugging of import failures
    if config['debug']:
        failure.startDebugMode()
    if config['debug'] or config['debug-stacktraces']:
        defer.setDebugging(True)

def opt_debug(self):
        """
        run the application in the Python Debugger (implies nodaemon),
        sending SIGUSR2 will drop into debugger
        """
        defer.setDebugging(True)
        failure.startDebugMode()
        self['debug'] = True

def setUp(self):
        self._deferredWasDebugging = defer.getDebugging()
        defer.setDebugging(True)

def tearDown(self):
        defer.setDebugging(self._deferredWasDebugging)

def testNoDebugging(self):
        defer.setDebugging(False)
        d = defer.Deferred()
        d.addCallbacks(self._callback, self._errback)
        self._call_1(d)
        try:
            self._call_2(d)
        except defer.AlreadyCalledError, e:
            self.failIf(e.args)
        else:
            self.fail("second callback failed to raise AlreadyCalledError")

def _initialDebugSetup(config):
    # do this part of debug setup first for easy debugging of import failures
    if config['debug']:
        failure.startDebugMode()
    if config['debug'] or config['debug-stacktraces']:
        defer.setDebugging(True)

def opt_debug(self):
        """
        run the application in the Python Debugger (implies nodaemon),
        sending SIGUSR2 will drop into debugger
        """
        defer.setDebugging(True)
        failure.startDebugMode()
        self['debug'] = True

def setUp(self):
        self._deferredWasDebugging = defer.getDebugging()
        defer.setDebugging(True)

def tearDown(self):
        defer.setDebugging(self._deferredWasDebugging)

def testNoDebugging(self):
        defer.setDebugging(False)
        d = defer.Deferred()
        d.addCallbacks(self._callback, self._errback)
        self._call_1(d)
        try:
            self._call_2(d)
        except defer.AlreadyCalledError, e:
            self.failIf(e.args)
        else:
            self.fail("second callback failed to raise AlreadyCalledError")

def _initialDebugSetup(config):
    # do this part of debug setup first for easy debugging of import failures
    if config['debug']:
        failure.startDebugMode()
    if config['debug'] or config['debug-stacktraces']:
        defer.setDebugging(True)

def opt_debug(self):
        """
        Run the application in the Python Debugger (implies nodaemon),
        sending SIGUSR2 will drop into debugger
        """
        defer.setDebugging(True)
        failure.startDebugMode()
        self['debug'] = True

def setUp(self):
        self.callbackResults = None
        self.errbackResults = None
        self.callback2Results = None
        # Restore the debug flag to its original state when done.
        self.addCleanup(defer.setDebugging, defer.getDebugging())

def setUp(self):
        self._deferredWasDebugging = defer.getDebugging()
        defer.setDebugging(True)

def tearDown(self):
        defer.setDebugging(self._deferredWasDebugging)

def testNoDebugging(self):
        defer.setDebugging(False)
        d = defer.Deferred()
        d.addCallbacks(self._callback, self._errback)
        self._call_1(d)
        try:
            self._call_2(d)
        except defer.AlreadyCalledError as e:
            self.assertFalse(e.args)
        else:
            self.fail("second callback failed to raise AlreadyCalledError")

def testSwitchDebugging(self):
        # Make sure Deferreds can deal with debug state flipping
        # around randomly.  This is covering a particular fixed bug.
        defer.setDebugging(False)
        d = defer.Deferred()
        d.addBoth(lambda ign: None)
        defer.setDebugging(True)
        d.callback(None)

        defer.setDebugging(False)
        d = defer.Deferred()
        d.callback(None)
        defer.setDebugging(True)
        d.addBoth(lambda ign: None)

def main(utility):
    args = _parse_args(utility)
    if args.debug:
        log.setLevel(level=logging.DEBUG)
        defer.setDebugging(True)
    if args.config:
        config = _parse_config_file(args.config, utility)
    else:
        config = _adapt_args_to_config(args, utility)
    reactor.callWhenRunning(utility.tx_main, args, config)
    reactor.run()
    sys.exit(_exit_status)