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112 lines
3.3 KiB
112 lines
3.3 KiB
# Copyright 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"). You
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# may not use this file except in compliance with the License. A copy of
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# the License is located at
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#
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# https://aws.amazon.com/apache2.0/
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#
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# or in the "license" file accompanying this file. This file is
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# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
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# ANY KIND, either express or implied. See the License for the specific
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# language governing permissions and limitations under the License.
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import logging
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from boto3.compat import _warn_deprecated_python
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from boto3.session import Session
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__author__ = 'Amazon Web Services'
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__version__ = '1.34.39'
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# The default Boto3 session; autoloaded when needed.
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DEFAULT_SESSION = None
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def setup_default_session(**kwargs):
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"""
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Set up a default session, passing through any parameters to the session
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constructor. There is no need to call this unless you wish to pass custom
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parameters, because a default session will be created for you.
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"""
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global DEFAULT_SESSION
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DEFAULT_SESSION = Session(**kwargs)
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def set_stream_logger(name='boto3', level=logging.DEBUG, format_string=None):
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"""
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Add a stream handler for the given name and level to the logging module.
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By default, this logs all boto3 messages to ``stdout``.
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>>> import boto3
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>>> boto3.set_stream_logger('boto3.resources', logging.INFO)
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For debugging purposes a good choice is to set the stream logger to ``''``
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which is equivalent to saying "log everything".
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.. WARNING::
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Be aware that when logging anything from ``'botocore'`` the full wire
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trace will appear in your logs. If your payloads contain sensitive data
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this should not be used in production.
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:type name: string
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:param name: Log name
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:type level: int
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:param level: Logging level, e.g. ``logging.INFO``
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:type format_string: str
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:param format_string: Log message format
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"""
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if format_string is None:
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format_string = "%(asctime)s %(name)s [%(levelname)s] %(message)s"
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logger = logging.getLogger(name)
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logger.setLevel(level)
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handler = logging.StreamHandler()
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handler.setLevel(level)
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formatter = logging.Formatter(format_string)
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handler.setFormatter(formatter)
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logger.addHandler(handler)
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def _get_default_session():
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"""
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Get the default session, creating one if needed.
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:rtype: :py:class:`~boto3.session.Session`
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:return: The default session
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"""
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if DEFAULT_SESSION is None:
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setup_default_session()
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_warn_deprecated_python()
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return DEFAULT_SESSION
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def client(*args, **kwargs):
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"""
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Create a low-level service client by name using the default session.
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See :py:meth:`boto3.session.Session.client`.
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"""
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return _get_default_session().client(*args, **kwargs)
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def resource(*args, **kwargs):
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"""
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Create a resource service client by name using the default session.
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See :py:meth:`boto3.session.Session.resource`.
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"""
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return _get_default_session().resource(*args, **kwargs)
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# Set up logging to ``/dev/null`` like a library is supposed to.
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# https://docs.python.org/3.3/howto/logging.html#configuring-logging-for-a-library
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class NullHandler(logging.Handler):
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def emit(self, record):
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pass
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logging.getLogger('boto3').addHandler(NullHandler())
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