Remove unused oslo incubator files
Remove the following unused oslo incubator files:
glance/openstack/common/_i18n.py
glance/openstack/common/fileutils.py
glance/openstack/common/local.py
Change-Id: I901cd4ffaa478536f5bbd9c23c322f84e7cacc0d
This commit is contained in:
Lianhao Lu
parent
737be8dd51
commit
522e924bba
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""oslo.i18n integration module.
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See http://docs.openstack.org/developer/oslo.i18n/usage.html
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"""
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try:
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import oslo_i18n
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# NOTE(dhellmann): This reference to o-s-l-o will be replaced by the
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# application name when this module is synced into the separate
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# repository. It is OK to have more than one translation function
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# using the same domain, since there will still only be one message
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# catalog.
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_translators = oslo_i18n.TranslatorFactory(domain='glance')
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# The primary translation function using the well-known name "_"
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_ = _translators.primary
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# Translators for log levels.
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#
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# The abbreviated names are meant to reflect the usual use of a short
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# name like '_'. The "L" is for "log" and the other letter comes from
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# the level.
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_LI = _translators.log_info
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_LW = _translators.log_warning
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_LE = _translators.log_error
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_LC = _translators.log_critical
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except ImportError:
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# NOTE(dims): Support for cases where a project wants to use
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# code from oslo-incubator, but is not ready to be internationalized
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# (like tempest)
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_ = _LI = _LW = _LE = _LC = lambda x: x
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@ -1,149 +0,0 @@
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# Copyright 2011 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import contextlib
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import errno
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import logging
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import os
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import stat
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import tempfile
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from oslo_utils import excutils
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LOG = logging.getLogger(__name__)
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_FILE_CACHE = {}
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DEFAULT_MODE = stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO
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def ensure_tree(path, mode=DEFAULT_MODE):
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"""Create a directory (and any ancestor directories required)
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:param path: Directory to create
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:param mode: Directory creation permissions
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"""
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try:
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os.makedirs(path, mode)
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except OSError as exc:
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if exc.errno == errno.EEXIST:
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if not os.path.isdir(path):
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raise
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else:
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raise
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def read_cached_file(filename, force_reload=False):
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"""Read from a file if it has been modified.
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:param force_reload: Whether to reload the file.
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:returns: A tuple with a boolean specifying if the data is fresh
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or not.
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"""
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global _FILE_CACHE
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if force_reload:
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delete_cached_file(filename)
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reloaded = False
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mtime = os.path.getmtime(filename)
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cache_info = _FILE_CACHE.setdefault(filename, {})
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if not cache_info or mtime > cache_info.get('mtime', 0):
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LOG.debug("Reloading cached file %s" % filename)
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with open(filename) as fap:
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cache_info['data'] = fap.read()
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cache_info['mtime'] = mtime
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reloaded = True
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return (reloaded, cache_info['data'])
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def delete_cached_file(filename):
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"""Delete cached file if present.
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:param filename: filename to delete
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"""
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global _FILE_CACHE
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if filename in _FILE_CACHE:
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del _FILE_CACHE[filename]
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def delete_if_exists(path, remove=os.unlink):
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"""Delete a file, but ignore file not found error.
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:param path: File to delete
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:param remove: Optional function to remove passed path
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"""
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try:
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remove(path)
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except OSError as e:
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if e.errno != errno.ENOENT:
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raise
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@contextlib.contextmanager
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def remove_path_on_error(path, remove=delete_if_exists):
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"""Protect code that wants to operate on PATH atomically.
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Any exception will cause PATH to be removed.
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:param path: File to work with
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:param remove: Optional function to remove passed path
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"""
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try:
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yield
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except Exception:
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with excutils.save_and_reraise_exception():
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remove(path)
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def file_open(*args, **kwargs):
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"""Open file
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see built-in open() documentation for more details
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Note: The reason this is kept in a separate module is to easily
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be able to provide a stub module that doesn't alter system
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state at all (for unit tests)
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"""
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return open(*args, **kwargs)
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def write_to_tempfile(content, path=None, suffix='', prefix='tmp'):
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"""Create temporary file or use existing file.
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This util is needed for creating temporary file with
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specified content, suffix and prefix. If path is not None,
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it will be used for writing content. If the path doesn't
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exist it'll be created.
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:param content: content for temporary file.
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:param path: same as parameter 'dir' for mkstemp
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:param suffix: same as parameter 'suffix' for mkstemp
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:param prefix: same as parameter 'prefix' for mkstemp
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For example: it can be used in database tests for creating
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configuration files.
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"""
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if path:
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ensure_tree(path)
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(fd, path) = tempfile.mkstemp(suffix=suffix, dir=path, prefix=prefix)
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try:
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os.write(fd, content)
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finally:
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os.close(fd)
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return path
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@ -1,45 +0,0 @@
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# Copyright 2011 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Local storage of variables using weak references"""
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import threading
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import weakref
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class WeakLocal(threading.local):
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def __getattribute__(self, attr):
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rval = super(WeakLocal, self).__getattribute__(attr)
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if rval:
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# NOTE(mikal): this bit is confusing. What is stored is a weak
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# reference, not the value itself. We therefore need to lookup
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# the weak reference and return the inner value here.
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rval = rval()
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return rval
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def __setattr__(self, attr, value):
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value = weakref.ref(value)
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return super(WeakLocal, self).__setattr__(attr, value)
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# NOTE(mikal): the name "store" should be deprecated in the future
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store = WeakLocal()
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# A "weak" store uses weak references and allows an object to fall out of scope
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# when it falls out of scope in the code that uses the thread local storage. A
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# "strong" store will hold a reference to the object so that it never falls out
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# of scope.
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weak_store = WeakLocal()
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strong_store = threading.local()
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