Python twisted.python.failure 模块，startDebugMode() 实例源码

def process_options(self, args, opts):
        try:
            self.settings.setdict(arglist_to_dict(opts.set),
                                  priority='cmdline')
        except ValueError:
            raise UsageError("Invalid -s value, use -s NAME=VALUE", print_help=False)

        if opts.logfile:
            self.settings.set('LOG_ENABLED', True, priority='cmdline')
            self.settings.set('LOG_FILE', opts.logfile, priority='cmdline')

        if opts.loglevel:
            self.settings.set('LOG_ENABLED', True, priority='cmdline')
            self.settings.set('LOG_LEVEL', opts.loglevel, priority='cmdline')

        if opts.nolog:
            self.settings.set('LOG_ENABLED', False, priority='cmdline')

        if opts.pidfile:
            with open(opts.pidfile, "w") as f:
                f.write(str(os.getpid()) + os.linesep)

        if opts.pdb:
            failure.startDebugMode()

def setUp(self):
        """
        Override pdb.post_mortem so we can make sure it's called.
        """
        # Make sure any changes we make are reversed:
        post_mortem = pdb.post_mortem
        if _shouldEnableNewStyle:
            origInit = failure.Failure.__init__
        else:
            origInit = failure.Failure.__dict__['__init__']
        def restore():
            pdb.post_mortem = post_mortem
            if _shouldEnableNewStyle:
                failure.Failure.__init__ = origInit
            else:
                failure.Failure.__dict__['__init__'] = origInit
        self.addCleanup(restore)

        self.result = []
        pdb.post_mortem = self.result.append
        failure.startDebugMode()

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 _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 cli(ctx, loglevel, config, pdb):
    """
    feeds creates feeds for pages that don't have feeds.
    """
    if pdb:
        failure.startDebugMode()
    os.chdir(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))

    settings = get_feeds_settings(config)
    settings.set('LOG_LEVEL', loglevel.upper())
    ctx.obj['settings'] = settings

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 test_regularFailure(self):
        """
        If startDebugMode() is called, calling Failure() will first call
        pdb.post_mortem with the traceback.
        """
        try:
            1/0
        except:
            typ, exc, tb = sys.exc_info()
            f = failure.Failure()
        self.assertEqual(self.result, [tb])
        self.assertFalse(f.captureVars)

def test_captureVars(self):
        """
        If startDebugMode() is called, passing captureVars to Failure() will
        not blow up.
        """
        try:
            1/0
        except:
            typ, exc, tb = sys.exc_info()
            f = failure.Failure(captureVars=True)
        self.assertEqual(self.result, [tb])
        self.assertTrue(f.captureVars)