Python try_import Examples

Example #1

File: matchmaker_redis.py Project: silenceli/cloudbase-init-for-cmcc

#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

"""
The MatchMaker classes should accept a Topic or Fanout exchange key and
return keys for direct exchanges, per (approximate) AMQP parlance.
"""

from oslo.config import cfg

from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common.rpc import matchmaker as mm_common

redis = importutils.try_import('redis')


matchmaker_redis_opts = [
    cfg.StrOpt('host',
               default='127.0.0.1',
               help='Host to locate redis'),
    cfg.IntOpt('port',
               default=6379,
               help='Use this port to connect to redis host.'),
    cfg.StrOpt('password',
               help='Password for Redis server. (optional)'),
]

CONF = cfg.CONF
opt_group = cfg.OptGroup(name='matchmaker_redis',

Example #2

File: service.py Project: silenceli/cloudbase-init-for-cmcc

except ImportError:
    # Python 2.6
    UnsupportedOperation = None

import eventlet
from eventlet import event
from oslo.config import cfg

from cloudbaseinit.openstack.common import eventlet_backdoor
from cloudbaseinit.openstack.common.gettextutils import _LE, _LI, _LW
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common import systemd
from cloudbaseinit.openstack.common import threadgroup

rpc = importutils.try_import('cloudbaseinit.openstack.common.rpc')
CONF = cfg.CONF
LOG = logging.getLogger(__name__)


def _sighup_supported():
    return hasattr(signal, 'SIGHUP')


def _is_daemon():
    # The process group for a foreground process will match the
    # process group of the controlling terminal. If those values do
    # not match, or ioctl() fails on the stdout file handle, we assume
    # the process is running in the background as a daemon.
    # http://www.gnu.org/software/bash/manual/bashref.html#Job-Control-Basics
    try:

Example #3

#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.
"""
The MatchMaker classes should accept a Topic or Fanout exchange key and
return keys for direct exchanges, per (approximate) AMQP parlance.
"""

from oslo.config import cfg

from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common.rpc import matchmaker as mm_common

redis = importutils.try_import('redis')

matchmaker_redis_opts = [
    cfg.StrOpt('host', default='127.0.0.1', help='Host to locate redis'),
    cfg.IntOpt('port',
               default=6379,
               help='Use this port to connect to redis host.'),
    cfg.StrOpt('password', help='Password for Redis server. (optional)'),
]

CONF = cfg.CONF
opt_group = cfg.OptGroup(name='matchmaker_redis',
                         title='Options for Redis-based MatchMaker')
CONF.register_group(opt_group)
CONF.register_opts(matchmaker_redis_opts, opt_group)
LOG = logging.getLogger(__name__)

Example #4

import types
import uuid

import eventlet
import greenlet
from oslo_config import cfg
import six
from six import moves

from cloudbaseinit.openstack.common import excutils
from cloudbaseinit.openstack.common.gettextutils import _, _LE, _LI
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import jsonutils
from cloudbaseinit.openstack.common.rpc import common as rpc_common

zmq = importutils.try_import('eventlet.green.zmq')

# for convenience, are not modified.
pformat = pprint.pformat
Timeout = eventlet.timeout.Timeout
LOG = rpc_common.LOG
RemoteError = rpc_common.RemoteError
RPCException = rpc_common.RPCException

zmq_opts = [
    cfg.StrOpt('rpc_zmq_bind_address', default='*',
               help='ZeroMQ bind address. Should be a wildcard (*), '
                    'an ethernet interface, or IP. '
                    'The "host" option should point or resolve to this '
                    'address.'),

Example #5

File: matchmaker_redis.py Project: zhengyuxin/cloudbase-init

#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

"""
The MatchMaker classes should accept a Topic or Fanout exchange key and
return keys for direct exchanges, per (approximate) AMQP parlance.
"""

from oslo.config import cfg

from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common.rpc import matchmaker as mm_common

redis = importutils.try_import("redis")


matchmaker_redis_opts = [
    cfg.StrOpt("host", default="127.0.0.1", help="Host to locate redis"),
    cfg.IntOpt("port", default=6379, help="Use this port to connect to redis host."),
    cfg.StrOpt("password", help="Password for Redis server. (optional)"),
]

CONF = cfg.CONF
opt_group = cfg.OptGroup(name="matchmaker_redis", title="Options for Redis-based MatchMaker")
CONF.register_group(opt_group)
CONF.register_opts(matchmaker_redis_opts, opt_group)
LOG = logging.getLogger(__name__)

Example #6

File: service.py Project: BillTheBest/cloudbase-init

except ImportError:
    # Python 2.6
    UnsupportedOperation = None

import eventlet
from eventlet import event
from oslo.config import cfg

from cloudbaseinit.openstack.common import eventlet_backdoor
from cloudbaseinit.openstack.common.gettextutils import _
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common import threadgroup


rpc = importutils.try_import('cloudbaseinit.openstack.common.rpc')
CONF = cfg.CONF
LOG = logging.getLogger(__name__)


def _sighup_supported():
    return hasattr(signal, 'SIGHUP')


def _is_daemon():
    # The process group for a foreground process will match the
    # process group of the controlling terminal. If those values do
    # not match, or ioctl() fails on the stdout file handle, we assume
    # the process is running in the background as a daemon.
    # http://www.gnu.org/software/bash/manual/bashref.html#Job-Control-Basics
    try:

Example #7

import time

import eventlet
import greenlet
from oslo.config import cfg
import six

from cloudbaseinit.openstack.common import excutils
from cloudbaseinit.openstack.common.gettextutils import _, _LE, _LI
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import jsonutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common.rpc import amqp as rpc_amqp
from cloudbaseinit.openstack.common.rpc import common as rpc_common

qpid_codec = importutils.try_import("qpid.codec010")
qpid_messaging = importutils.try_import("qpid.messaging")
qpid_exceptions = importutils.try_import("qpid.messaging.exceptions")

LOG = logging.getLogger(__name__)

qpid_opts = [
    cfg.StrOpt('qpid_hostname',
               default='localhost',
               help='Qpid broker hostname'),
    cfg.IntOpt('qpid_port', default=5672, help='Qpid broker port'),
    cfg.ListOpt('qpid_hosts',
                default=['$qpid_hostname:$qpid_port'],
                help='Qpid HA cluster host:port pairs'),
    cfg.StrOpt('qpid_username',
               default='',

Example #8

File: impl_qpid.py Project: BillTheBest/cloudbase-init

import time

import eventlet
import greenlet
from oslo.config import cfg
import six

from cloudbaseinit.openstack.common import excutils
from cloudbaseinit.openstack.common.gettextutils import _
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import jsonutils
from cloudbaseinit.openstack.common import log as logging
from cloudbaseinit.openstack.common.rpc import amqp as rpc_amqp
from cloudbaseinit.openstack.common.rpc import common as rpc_common

qpid_codec = importutils.try_import("qpid.codec010")
qpid_messaging = importutils.try_import("qpid.messaging")
qpid_exceptions = importutils.try_import("qpid.messaging.exceptions")

LOG = logging.getLogger(__name__)

qpid_opts = [
    cfg.StrOpt('qpid_hostname',
               default='localhost',
               help='Qpid broker hostname'),
    cfg.IntOpt('qpid_port',
               default=5672,
               help='Qpid broker port'),
    cfg.ListOpt('qpid_hosts',
                default=['$qpid_hostname:$qpid_port'],
                help='Qpid HA cluster host:port pairs'),

Example #9

File: jsonutils.py Project: BillTheBest/cloudbase-init

    import xmlrpclib
except ImportError:
    # NOTE(jaypipes): xmlrpclib was renamed to xmlrpc.client in Python3
    #                 however the function and object call signatures
    #                 remained the same. This whole try/except block should
    #                 be removed and replaced with a call to six.moves once
    #                 six 1.4.2 is released. See http://bit.ly/1bqrVzu
    import xmlrpc.client as xmlrpclib

import six

from cloudbaseinit.openstack.common import gettextutils
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import timeutils

netaddr = importutils.try_import("netaddr")

_nasty_type_tests = [inspect.ismodule, inspect.isclass, inspect.ismethod,
                     inspect.isfunction, inspect.isgeneratorfunction,
                     inspect.isgenerator, inspect.istraceback, inspect.isframe,
                     inspect.iscode, inspect.isbuiltin, inspect.isroutine,
                     inspect.isabstract]

_simple_types = (six.string_types + six.integer_types
                 + (type(None), bool, float))


def to_primitive(value, convert_instances=False, convert_datetime=True,
                 level=0, max_depth=3):
    """Convert a complex object into primitives.

Example #10

File: impl_zmq.py Project: PCManticore/cloudbase-init

import types
import uuid

import eventlet
import greenlet
from oslo.config import cfg
import six
from six import moves

from cloudbaseinit.openstack.common import excutils
from cloudbaseinit.openstack.common.gettextutils import _, _LE, _LI
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import jsonutils
from cloudbaseinit.openstack.common.rpc import common as rpc_common

zmq = importutils.try_import('eventlet.green.zmq')

# for convenience, are not modified.
pformat = pprint.pformat
Timeout = eventlet.timeout.Timeout
LOG = rpc_common.LOG
RemoteError = rpc_common.RemoteError
RPCException = rpc_common.RPCException

zmq_opts = [
    cfg.StrOpt('rpc_zmq_bind_address', default='*',
               help='ZeroMQ bind address. Should be a wildcard (*), '
                    'an ethernet interface, or IP. '
                    'The "host" option should point or resolve to this '
                    'address.'),

Example #11

File: jsonutils.py Project: silenceli/cloudbase-init-for-cmcc

        else:
            import json
    except ImportError:
        import json
else:
    import json

import six
import six.moves.xmlrpc_client as xmlrpclib

from cloudbaseinit.openstack.common import gettextutils
from cloudbaseinit.openstack.common import importutils
from cloudbaseinit.openstack.common import strutils
from cloudbaseinit.openstack.common import timeutils

netaddr = importutils.try_import("netaddr")

_nasty_type_tests = [
    inspect.ismodule, inspect.isclass, inspect.ismethod, inspect.isfunction,
    inspect.isgeneratorfunction, inspect.isgenerator, inspect.istraceback,
    inspect.isframe, inspect.iscode, inspect.isbuiltin, inspect.isroutine,
    inspect.isabstract
]

_simple_types = (six.string_types + six.integer_types +
                 (type(None), bool, float))


def to_primitive(value,
                 convert_instances=False,
                 convert_datetime=True,