本文整理匯總了Python中oslo_utils.importutils.try_import方法的典型用法代碼示例。如果您正苦於以下問題：Python importutils.try_import方法的具體用法？Python importutils.try_import怎麽用？Python importutils.try_import使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類oslo_utils.importutils的用法示例。
在下文中一共展示了importutils.try_import方法的6個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: stop
# 需要導入模塊: from oslo_utils import importutils [as 別名]
# 或者: from oslo_utils.importutils import try_import [as 別名]
def stop(self):
LOG.info('Stopping service %s (%s)', self.svc_name, id(self.svc))
try:
self.svc.stop()
except Exception:
LOG.error('Failed to stop service %s (%s)',
self.svc_name, id(self.svc))
raise
finally:
# Always try reset the service's RPCAPI
mod = importutils.try_import('designate.%s.rpcapi' % self.svc_name)
if hasattr(mod, 'reset'):
LOG.info('Resetting service %s RPCAPI', self.svc_name)
mod.reset() 示例2: _try_import
# 需要導入模塊: from oslo_utils import importutils [as 別名]
# 或者: from oslo_utils.importutils import try_import [as 別名]
def _try_import(module_name):
try:
return importutils.try_import(module_name)
except Exception as e:
msg = 'Unable to load module "%s". %s' % (module_name, str(e))
LOG.error(msg)
return None 示例3: __init__
# 需要導入模塊: from oslo_utils import importutils [as 別名]
# 或者: from oslo_utils.importutils import try_import [as 別名]
def __init__(self, manager_module, manager_class, topic, host=None):
super(RPCService, self).__init__()
self.topic = topic
self.host = host or CONF.host
manager_module = importutils.try_import(manager_module)
manager_class = getattr(manager_module, manager_class)
self.manager = manager_class(self.topic, self.host)
self.rpcserver = None 示例4: test_try_import
# 需要導入模塊: from oslo_utils import importutils [as 別名]
# 或者: from oslo_utils.importutils import try_import [as 別名]
def test_try_import(self):
dt = importutils.try_import('datetime')
self.assertEqual(sys.modules['datetime'], dt) 示例5: test_try_import_returns_default
# 需要導入模塊: from oslo_utils import importutils [as 別名]
# 或者: from oslo_utils.importutils import try_import [as 別名]
def test_try_import_returns_default(self):
foo = importutils.try_import('foo.bar')
self.assertIsNone(foo) 示例6: __init__
# 需要導入模塊: from oslo_utils import importutils [as 別名]
# 或者: from oslo_utils.importutils import try_import [as 別名]
def __init__(self, connection_str, project=None, service=None, host=None,
context=None, conf=None, transport_url=None,
idle_timeout=1, **kwargs):
"""Driver that uses messaging as transport for notifications
:param connection_str: OSProfiler driver connection string,
equals to messaging://
:param project: project name that will be included into notification
:param service: service name that will be included into notification
:param host: host name that will be included into notification
:param context: oslo.messaging context
:param conf: oslo.config CONF object
:param transport_url: oslo.messaging transport, e.g.
rabbit://rabbit:password@devstack:5672/
:param idle_timeout: how long to wait for new notifications after
the last one seen in the trace; this parameter is useful to
collect full trace of asynchronous commands, e.g. when user
runs `osprofiler` right after `openstack server create`
:param kwargs: black hole for any other parameters
"""
self.oslo_messaging = importutils.try_import("oslo_messaging")
if not self.oslo_messaging:
raise ValueError("Oslo.messaging library is required for "
"messaging driver")
super(Messaging, self).__init__(connection_str, project=project,
service=service, host=host)
self.context = context
if not conf:
oslo_config = importutils.try_import("oslo_config")
if not oslo_config:
raise ValueError("Oslo.config library is required for "
"messaging driver")
conf = oslo_config.cfg.CONF
transport_kwargs = {}
if transport_url:
transport_kwargs["url"] = transport_url
self.transport = self.oslo_messaging.get_notification_transport(
conf, **transport_kwargs)
self.client = self.oslo_messaging.Notifier(
self.transport, publisher_id=self.host, driver="messaging",
topics=["profiler"], retry=0)
self.idle_timeout = idle_timeout