def __init__(self, providers):
self.providers = providers
# If there's an application singleton, pass its configurables to the provider. If
# no application, still give provider a chance to handle configuration loading.
config = None
if Application.initialized():
config = Application.instance().config
for provider in providers:
provider.load_config(config=config)
def app_or_module_logger(module_name):
"""
If a global Application is instantiated, grab its logger.
Otherwise, get a logger for the module name.
"""
from traitlets.config import Application
if Application.initialized():
return Application.instance().log
else:
_logger = logging.getLogger(module_name)
# Add a NullHandler to silence warnings about not being
# initialized, per best practice for libraries.
_logger.addHandler(logging.NullHandler())
return _logger
def _default_log(self):
if self.parent and self.parent is IPython.get_ipython():
# log to stdout in an IPython session
log = logging.getLogger(f"{__name__}.{self.cluster_id}")
log.setLevel(self.log_level)
handler = logging.StreamHandler(sys.stdout)
log.handlers = [handler]
return log
elif self.parent and getattr(self.parent, 'log', None) is not None:
return self.parent.log
elif Application.initialized():
return Application.instance().log
else:
# set up our own logger
log = logging.getLogger(f"{__name__}.{self.cluster_id}")
log.setLevel(self.log_level)
return log
def log(self):
"""use the IPython log by default, falling back on tornado's logger"""
if Application.initialized():
return Application.instance().log
else:
return app_log
def log():
if Application.initialized():
return Application.instance().log
else:
return app_log
def log():
if Application.initialized():
return Application.instance().log
else:
return app_log
def log(self):
"""use the IPython log by default, falling back on tornado's logger"""
if Application.initialized():
return Application.instance().log
else:
return app_log