client_wrapper.py 文件源码

def __init__(self):
        """Initialise the IronicClientWrapper for use.

        Initialise IronicClientWrapper by loading ironicclient
        dynamically so that ironicclient is not a dependency for
        Nova.
        """
        global ironic
        if ironic is None:
            ironic = importutils.import_module('ironicclient')
            # NOTE(deva): work around a lack of symbols in the current version.
            if not hasattr(ironic, 'exc'):
                ironic.exc = importutils.import_module('ironicclient.exc')
            if not hasattr(ironic, 'client'):
                ironic.client = importutils.import_module(
                                                    'ironicclient.client')
        self._cached_client = None