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< # The getcontext() and setcontext() function manage access to a thread-local
< # current context.  Py2.4 offers direct support for thread locals.  If that
< # is not available, use threading.current_thread() which is slower but will
< # work for older Pythons.  If threads are not part of the build, create a
< # mock threading object with threading.local() returning the module namespace.
< 
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<     # Python was compiled without threads; create a mock object instead
<     class MockThreading(object):
<         def local(self, sys=sys):
<             return sys.modules[__name__]
<     threading = MockThreading()
<     del MockThreading
< 
< try:
<     threading.local
< 
< except AttributeError:
---
>     import dummy_threading
446,496c430,444
<     # To fix reloading, force it to create a new context
<     # Old contexts have different exceptions in their dicts, making problems.
<     if hasattr(threading.current_thread(), '__decimal_context__'):
<         del threading.current_thread().__decimal_context__
< 
<     def setcontext(context):
<         """Set this thread's context to context."""
<         if context in (DefaultContext, BasicContext, ExtendedContext):
<             context = context.copy()
<             context.clear_flags()
<         threading.current_thread().__decimal_context__ = context
< 
<     def getcontext():
<         """Returns this thread's context.
< 
<         If this thread does not yet have a context, returns
<         a new context and sets this thread's context.
<         New contexts are copies of DefaultContext.
<         """
<         try:
<             return threading.current_thread().__decimal_context__
<         except AttributeError:
<             context = Context()
<             threading.current_thread().__decimal_context__ = context
<             return context
< 
< else:
< 
<     local = threading.local()
<     if hasattr(local, '__decimal_context__'):
<         del local.__decimal_context__
< 
<     def getcontext(_local=local):
<         """Returns this thread's context.
< 
<         If this thread does not yet have a context, returns
<         a new context and sets this thread's context.
<         New contexts are copies of DefaultContext.
<         """
<         try:
<             return _local.__decimal_context__
<         except AttributeError:
<             context = Context()
<             _local.__decimal_context__ = context
<             return context
< 
<     def setcontext(context, _local=local):
<         """Set this thread's context to context."""
<         if context in (DefaultContext, BasicContext, ExtendedContext):
<             context = context.copy()
<             context.clear_flags()
---
> local = threading.local()
> if hasattr(local, '__decimal_context__'):
>     del local.__decimal_context__
> 
> def getcontext(_local=local):
>     """Returns this thread's context.
> 
>     If this thread does not yet have a context, returns
>     a new context and sets this thread's context.
>     New contexts are copies of DefaultContext.
>     """
>     try:
>         return _local.__decimal_context__
>     except AttributeError:
>         context = Context()
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>         return context
> 
> def setcontext(context, _local=local):
>     """Set this thread's context to context."""
>     if context in (DefaultContext, BasicContext, ExtendedContext):
>         context = context.copy()
>         context.clear_flags()
>     _local.__decimal_context__ = context
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<     del threading, local        # Don't contaminate the namespace
---
> del threading, local        # Don't contaminate the namespace
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<     # @classmethod, but @decorator is not valid Python 2.3 syntax, so
<     # don't use it (see notes on Py2.3 compatibility at top of file)
---
>     @classmethod
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<     from_float = classmethod(from_float)