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bzrlib/symbol_versioning.py
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           'zero_eighteen',
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           'zero_ninety',
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           'zero_ninetyone',
 
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           'zero_ninetytwo',
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           ]
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from warnings import warn
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zero_eighteen = "%s was deprecated in version 0.18."
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zero_ninety = "%s was deprecated in version 0.90."
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zero_ninetyone = "%s was deprecated in version 0.91."
 
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zero_ninetytwo = "%s was deprecated in version 0.92."
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def set_warning_method(method):
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        have a single %s operator in it. a_callable will be turned into a nice
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        python symbol and then substituted into deprecation_version.
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    """
 
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    # We also want to handle old-style classes, in particular exception, and
 
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    # they don't have an im_class attribute.
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    if getattr(a_callable, 'im_class', None) is None:
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        symbol = "%s.%s" % (a_callable.__module__,
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                            a_callable.__name__)
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def deprecated_method(deprecation_version):
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    """Decorate a method so that use of it will trigger a warning.
 
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    To deprecate a static or class method, use 
 
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        @staticmethod
 
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        @deprecated_function
 
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        def ...
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    To deprecate an entire class, decorate __init__.
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    """
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        def decorated_method(self, *args, **kwargs):
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            """This is the decorated method."""
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            symbol = "%s.%s.%s" % (self.__class__.__module__,
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                                   self.__class__.__name__,
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                                   callable.__name__
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                                   )
 
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            if callable.__name__ == '__init__':
 
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                symbol = "%s.%s" % (self.__class__.__module__,
 
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                                    self.__class__.__name__,
 
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                                    )
 
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            else:
 
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                symbol = "%s.%s.%s" % (self.__class__.__module__,
 
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                                       self.__class__.__name__,
 
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                                       callable.__name__
 
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                                       )
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            warn(deprecation_version % symbol, DeprecationWarning, stacklevel=2)
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            return callable(self, *args, **kwargs)
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        _populate_decorated(callable, deprecation_version, "method",