44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
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# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
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"""
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Implementation of thread-local storage, for Python versions that don't
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have thread local storage natively.
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"""
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try:
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import threading
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except ImportError:
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# No threads, so "thread local" means process-global
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class local(object):
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pass
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else:
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try:
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local = threading.local
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except AttributeError:
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# Added in 2.4, but now we'll have to define it ourselves
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import thread
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class local(object):
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def __init__(self):
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self.__dict__['__objs'] = {}
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def __getattr__(self, attr, g=thread.get_ident):
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try:
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return self.__dict__['__objs'][g()][attr]
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except KeyError:
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raise AttributeError(
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"No variable %s defined for the thread %s"
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% (attr, g()))
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def __setattr__(self, attr, value, g=thread.get_ident):
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self.__dict__['__objs'].setdefault(g(), {})[attr] = value
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def __delattr__(self, attr, g=thread.get_ident):
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try:
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del self.__dict__['__objs'][g()][attr]
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except KeyError:
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raise AttributeError(
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"No variable %s defined for thread %s"
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% (attr, g()))
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