Python eventlet 模块，monkey_patch() 实例源码

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(servername, ip, port, softcron=True, logging=False, profiler=None,
        options=None):
    if servername == 'gevent':
        from gevent import monkey
        monkey.patch_all()
    elif servername == 'eventlet':
        import eventlet
        eventlet.monkey_patch()

    import gluon.main

    if logging:
        application = gluon.main.appfactory(wsgiapp=gluon.main.wsgibase,
                                            logfilename='httpserver.log',
                                            profiler_dir=profiler)
    else:
        application = gluon.main.wsgibase
    if softcron:
        from gluon.settings import global_settings
        global_settings.web2py_crontype = 'soft'
    getattr(Servers, servername)(application, (ip, int(port)), options=options)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(servername, ip, port, softcron=True, logging=False, profiler=None,
        options=None):
    if servername == 'gevent':
        from gevent import monkey
        monkey.patch_all()
    elif servername == 'eventlet':
        import eventlet
        eventlet.monkey_patch()

    import gluon.main

    if logging:
        application = gluon.main.appfactory(wsgiapp=gluon.main.wsgibase,
                                            logfilename='httpserver.log',
                                            profiler_dir=profiler)
    else:
        application = gluon.main.wsgibase
    if softcron:
        from gluon.settings import global_settings
        global_settings.web2py_crontype = 'soft'
    getattr(Servers, servername)(application, (ip, int(port)), options=options)

def monkey_patch():
    """Greening the world (eventlet)

    The approach is to monkeypatch the Standard Library. For more details
    see http://eventlet.net/doc/patching.html
    """
    if os.name == 'nt':
        # eventlet monkey patching the os and thread modules causes
        # subprocess.Popen to fail on Windows when using pipes due
        # to missing non-blocking IO support.
        #
        # bug report on eventlet:
        # https://bitbucket.org/eventlet/eventlet/issue/132/
        #       eventletmonkey_patch-breaks
        eventlet.monkey_patch(os=False, thread=False)
    else:
        eventlet.monkey_patch()

def setup(url=None, optional=False):
    """Initialise the oslo_messaging layer."""
    global TRANSPORT, NOTIFIER

    if url and url.startswith("fake://"):
        # NOTE(sileht): oslo_messaging fake driver uses time.sleep
        # for task switch, so we need to monkey_patch it
        eventlet.monkey_patch(time=True)

    if not TRANSPORT:
        oslo_messaging.set_transport_defaults('bilean')
        exmods = ['bilean.common.exception']
        try:
            TRANSPORT = oslo_messaging.get_transport(
                cfg.CONF, url, allowed_remote_exmods=exmods)
        except oslo_messaging.InvalidTransportURL as e:
            TRANSPORT = None
            if not optional or e.url:
                # NOTE(sileht): oslo_messaging is configured but unloadable
                # so reraise the exception
                raise

    if not NOTIFIER and TRANSPORT:
        serializer = RequestContextSerializer(JsonPayloadSerializer())
        NOTIFIER = oslo_messaging.Notifier(TRANSPORT, serializer=serializer)

def run(servername, ip, port, softcron=True, logging=False, profiler=None,
        options=None):
    if servername == 'gevent':
        from gevent import monkey
        monkey.patch_all()
    elif servername == 'eventlet':
        import eventlet
        eventlet.monkey_patch()

    import gluon.main

    if logging:
        application = gluon.main.appfactory(wsgiapp=gluon.main.wsgibase,
                                            logfilename='httpserver.log',
                                            profiler_dir=profiler)
    else:
        application = gluon.main.wsgibase
    if softcron:
        from gluon.settings import global_settings
        global_settings.web2py_crontype = 'soft'
    getattr(Servers, servername)(application, (ip, int(port)), options=options)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def main():
    mode = config.get("CENO", "agent")

    if mode == "client":
        import eventlet
        import eventlet.wsgi
        eventlet.monkey_patch()

    bm_api.setup()

    api_ok = testapi()
    if not api_ok:
        logger.critical("Failed to test Bitmessage API, is it properly configured and running?")
        return

    if mode == "server":
        launch_server()
    elif mode == "client":
        launch_client(eventlet, eventlet.wsgi)
    else:
        logger.critical("Unknown agent mode")
        return

def run(servername, ip, port, softcron=True, logging=False, profiler=None,
        options=None):
    if servername == 'gevent':
        from gevent import monkey
        monkey.patch_all()
    elif servername == 'eventlet':
        import eventlet
        eventlet.monkey_patch()

    import gluon.main

    if logging:
        application = gluon.main.appfactory(wsgiapp=gluon.main.wsgibase,
                                            logfilename='httpserver.log',
                                            profiler_dir=profiler)
    else:
        application = gluon.main.wsgibase
    if softcron:
        from gluon.settings import global_settings
        global_settings.web2py_crontype = 'soft'
    getattr(Servers, servername)(application, (ip, int(port)), options=options)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(servername, ip, port, softcron=True, logging=False, profiler=None,
        options=None):
    if servername == 'gevent':
        from gevent import monkey
        monkey.patch_all()
    elif servername == 'eventlet':
        import eventlet
        eventlet.monkey_patch()

    import gluon.main

    if logging:
        application = gluon.main.appfactory(wsgiapp=gluon.main.wsgibase,
                                            logfilename='httpserver.log',
                                            profiler_dir=profiler)
    else:
        application = gluon.main.wsgibase
    if softcron:
        from gluon.settings import global_settings
        global_settings.web2py_crontype = 'soft'
    getattr(Servers, servername)(application, (ip, int(port)), options=options)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def __call__(self, app, host, port, use_debugger, use_reloader):
        # override the default runserver command to start a Socket.IO server
        if use_debugger is None:
            use_debugger = app.debug
            if use_debugger is None:
                use_debugger = True
        if use_reloader is None:
            use_reloader = app.debug
        import eventlet
        # monkey_patch
        eventlet.monkey_patch()

        socketio.run(app,
                     host=host,
                     port=port,
                     debug=use_debugger,
                     use_reloader=use_reloader,
                     **self.server_options)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def main():
    eventlet.monkey_patch()
    cfg.CONF(project='neutron')

    logging_config.setup_logging(cfg.CONF)
    try:
        interface_mappings = q_utils.parse_mappings(
            cfg.CONF.LINUX_BRIDGE.physical_interface_mappings)
    except ValueError as e:
        LOG.error(_("Parsing physical_interface_mappings failed: %s."
                    " Agent terminated!"), e)
        sys.exit(1)
    LOG.info(_("Interface mappings: %s"), interface_mappings)

    polling_interval = cfg.CONF.AGENT.polling_interval
    root_helper = cfg.CONF.AGENT.root_helper
    agent = CalicoNeutronAgentRPC(interface_mappings,
                                  polling_interval,
                                  root_helper)
    LOG.info(_("Agent initialized successfully, now running... "))
    agent.daemon_loop()
    sys.exit(0)

def test_simple(self):
        new_mod = """
import eventlet
from eventlet import patcher
patcher.monkey_patch()
from eventlet import tpool
print("newmod {0}".format(tpool.execute(len, "hi")))
print("newmod {0}".format(tpool.execute(len, "hi2")))
tpool.killall()
"""
        self.write_to_tempfile("newmod", new_mod)
        output, lines = self.launch_subprocess('newmod.py')
        self.assertEqual(len(lines), 3, output)
        assert lines[0].startswith('newmod'), repr(output)
        assert '2' in lines[0], repr(output)
        assert '3' in lines[1], repr(output)

def test_threading(self):
        new_mod = """import eventlet
eventlet.monkey_patch()
import threading
def test():
    print(repr(threading.currentThread()))
t = threading.Thread(target=test)
t.start()
t.join()
print(len(threading._active))
"""
        self.write_to_tempfile("newmod", new_mod)
        output, lines = self.launch_subprocess('newmod.py')
        self.assertEqual(len(lines), 3, "\n".join(lines))
        assert lines[0].startswith('<_MainThread'), lines[0]
        self.assertEqual(lines[1], "1", lines[1])

def test_greenlet(self):
        new_mod = """import eventlet
eventlet.monkey_patch()
from eventlet import event
import threading
evt = event.Event()
def test():
    print(repr(threading.currentThread()))
    evt.send()
eventlet.spawn_n(test)
evt.wait()
print(len(threading._active))
"""
        self.write_to_tempfile("newmod", new_mod)
        output, lines = self.launch_subprocess('newmod.py')
        self.assertEqual(len(lines), 3, "\n".join(lines))
        assert lines[0].startswith('<_MainThread'), lines[0]
        self.assertEqual(lines[1], "1", lines[1])

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def main():
    config.parse_args(sys.argv)
    utils.monkey_patch()

    _session = session.XenAPISession(CONF.xenserver.connection_url,
                                     CONF.xenserver.connection_username,
                                     CONF.xenserver.connection_password)

    sr_ref = vm_utils.safe_find_sr(_session)
    destroyed = vm_utils.destroy_cached_images(
        _session, sr_ref, all_cached=CONF.all_cached,
        dry_run=CONF.dry_run)

    if '--verbose' in sys.argv:
        print '\n'.join(destroyed)

    print "Destroyed %d cached VDIs" % len(destroyed)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def run(servername, ip, port, softcron=True, logging=False, profiler=None,
        options=None):
    if servername == 'gevent':
        from gevent import monkey
        monkey.patch_all()
    elif servername == 'eventlet':
        import eventlet
        eventlet.monkey_patch()

    import gluon.main

    if logging:
        application = gluon.main.appfactory(wsgiapp=gluon.main.wsgibase,
                                            logfilename='httpserver.log',
                                            profiler_dir=profiler)
    else:
        application = gluon.main.wsgibase
    if softcron:
        from gluon.settings import global_settings
        global_settings.web2py_crontype = 'soft'
    getattr(Servers, servername)(application, (ip, int(port)), options=options)

def run(self, handler):
        from eventlet import wsgi, listen, patcher
        if not patcher.is_monkey_patched(os):
            msg = "Bottle requires eventlet.monkey_patch() (before import)"
            raise RuntimeError(msg)
        socket_args = {}
        for arg in ('backlog', 'family'):
            try:
                socket_args[arg] = self.options.pop(arg)
            except KeyError:
                pass
        address = (self.host, self.port)
        try:
            wsgi.server(listen(address, **socket_args), handler,
                        log_output=(not self.quiet))
        except TypeError:
            # Fallback, if we have old version of eventlet
            wsgi.server(listen(address), handler)

def _cli_patch(cli_args):  # pragma: no coverage
    parsed_args, _ = _cli_parse(cli_args)
    opts = parsed_args
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def initialize_reactor(cls):
        eventlet.monkey_patch()
        if not cls._timers:
            cls._timers = TimerManager()
            cls._timeout_watcher = eventlet.spawn(cls.service_timeouts)
            cls._new_timer = Event()

def main():
    try:
        eventlet.monkey_patch(os=False)

        # the configuration will be into the cfg.CONF global data structure
        config.parseArgs(args=sys.argv[1:],
                         default_config_files=["/etc/synergy/synergy.conf"])

        if not cfg.CONF.config_file:
            sys.exit("ERROR: Unable to find configuration file via the "
                     "default search paths (~/.synergy/, ~/, /etc/synergy/"
                     ", /etc/) and the '--config-file' option!")

        setLogger(name="synergy")
        setLogger(name="oslo.messaging._drivers")

        global LOG

        LOG = logging.getLogger(__name__)
        LOG.info("Starting Synergy...")

        server = Synergy()
        server.start()

        LOG.info("Synergy started")
    except Exception as ex:
        LOG.error("unrecoverable error: %s" % ex)

def main():
    log.register_options(CONF)
    CONF(sys.argv[1:], project='meteos',
         version=version.version_string())
    log.setup(CONF, "meteos")
    utils.monkey_patch()

    launcher = service.process_launcher()
    server = service.WSGIService('osapi_learning')
    launcher.launch_service(server, workers=server.workers or 1)
    launcher.wait()

def _cli_patch(args):
    opts, _, _ = _cli_parse(args)
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def patch(self):
        hubs.use_hub()
        eventlet.monkey_patch(os=False)
        patch_sendfile()

def _cli_patch(args):
    opts, _, _ = _cli_parse(args)
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def _cli_patch(cli_args):  # pragma: no coverage
    parsed_args, _ = _cli_parse(cli_args)
    opts = parsed_args
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def _cli_patch(cli_args):  # pragma: no coverage
    parsed_args, _ = _cli_parse(cli_args)
    opts = parsed_args
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def patch(self):
        hubs.use_hub()
        eventlet.monkey_patch(os=False)
        patch_sendfile()

def patch(self):
        hubs.use_hub()
        eventlet.monkey_patch(os=False)
        patch_sendfile()

def patch(self):
        hubs.use_hub()
        eventlet.monkey_patch(os=False)
        patch_sendfile()

def _cli_patch(args):
    opts, _, _ = _cli_parse(args)
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def patch(self):
        hubs.use_hub()
        eventlet.monkey_patch(os=False)
        patch_sendfile()

def _cli_patch(cli_args):  # pragma: no coverage
    parsed_args, _ = _cli_parse(cli_args)
    opts = parsed_args
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()

def _cli_patch(args):
    opts, _, _ = _cli_parse(args)
    if opts.server:
        if opts.server.startswith('gevent'):
            import gevent.monkey
            gevent.monkey.patch_all()
        elif opts.server.startswith('eventlet'):
            import eventlet
            eventlet.monkey_patch()