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Viewing changes to bzrlib/lazy_import.py

  • Committer: John Arbash Meinel
  • Date: 2006-11-10 15:38:16 UTC
  • mto: This revision was merged to the branch mainline in revision 2129.
  • Revision ID: john@arbash-meinel.com-20061110153816-46acf76fc86a512b
use try/finally to clean up a nested progress bar during weave fetching

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bzrlib/lazy_import.py
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    needed.
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    """
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    __slots__ = ('_scope', '_factory', '_name', '_real_obj')
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    # Setting this to True will allow you to do x = y, and still access members
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    # from both variables. This should not normally be enabled, but is useful
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    # when building documentation.
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    _should_proxy = False
 
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    __slots__ = ('_scope', '_factory', '_name')
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    def __init__(self, scope, factory, name):
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        """Create a temporary object in the specified scope.
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        self._scope = scope
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        self._factory = factory
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        self._name = name
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        self._real_obj = None
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        scope[name] = self
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    def _replace(self):
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                          " to another variable?",
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                extra=e)
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        obj = factory(self, scope, name)
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        if ScopeReplacer._should_proxy:
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            self._real_obj = obj
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        scope[name] = obj
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        return obj
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        # del self._name
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    def __getattribute__(self, attr):
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        obj = object.__getattribute__(self, '_real_obj')
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        if obj is None:
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            _replace = object.__getattribute__(self, '_replace')
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            obj = _replace()
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            _cleanup = object.__getattribute__(self, '_cleanup')
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            _cleanup()
 
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        _replace = object.__getattribute__(self, '_replace')
 
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        obj = _replace()
 
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        _cleanup = object.__getattribute__(self, '_cleanup')
 
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        _cleanup()
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        return getattr(obj, attr)
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    def __call__(self, *args, **kwargs):