25 lines
1.1 KiB
Python
25 lines
1.1 KiB
Python
from ._version import __version_info__, __version__ # noqa
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from .attribute_dict import AttributeDict
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from .alias_dict import AliasDict
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class Lexicon(AttributeDict, AliasDict):
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def __init__(self, *args, **kwargs):
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# Need to avoid combining AliasDict's initial attribute write on
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# self.aliases, with AttributeDict's __setattr__. Doing so results in
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# an infinite loop. Instead, just skip straight to dict() for both
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# explicitly (i.e. we override AliasDict.__init__ instead of extending
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# it.)
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# NOTE: could tickle AttributeDict.__init__ instead, in case it ever
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# grows one.
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dict.__init__(self, *args, **kwargs)
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dict.__setattr__(self, "aliases", {})
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def __getattr__(self, key):
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# Intercept deepcopy/etc driven access to self.aliases when not
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# actually set. (Only a problem for us, due to abovementioned combo of
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# Alias and Attribute Dicts, so not solvable in a parent alone.)
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if key == "aliases" and key not in self.__dict__:
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self.__dict__[key] = {}
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return super(Lexicon, self).__getattr__(key)
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