63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
# (c) Copyright 2020 by Coinkite Inc. This file is covered by license found in COPYING-CC.
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#
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# objstruct.py
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#
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class ObjectStruct(dict):
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'''An object like both a dict and also an object that you can
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easily use attr reference to get members. Construct with a
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dict or like a dict.
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'''
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def __getattr__(self, name):
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if name in self:
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return self[name]
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else:
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# Do not return a default here because it breaks things
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raise AttributeError('No such attribute: %s' % name)
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def __setattr__(self, name, value):
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self[name] = value
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def __delattr__(self, name):
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del self[name]
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def __repr__(self):
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ret = '<%s:' % self.__class__.__name__
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for k,v in self.items():
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ret += ' %s=%r' % (k, v)
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return ret + '>'
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@classmethod
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def promote(cls, x):
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# Often I get a dict() from an API wrapper that's taken some json and
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# run it thru json.loads(). It would be better to have that as nested
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# ObjectStruct (which is easily done with some arguments to loads, but
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# usually they don't provide that feature)... so call this function
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#
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if isinstance(x, list):
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return [cls.promote(i) for i in x]
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if isinstance(x, dict):
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x = cls(x)
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for k in x:
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x[k] = cls.promote(x[k])
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return x
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class DefaultObjectStruct(ObjectStruct):
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''' Same, but can provide a default value if get_default is overriden'''
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def get_default(self, fldname):
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# override me
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return None
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def __getattr__(self, name):
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if name in self:
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return self[name]
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else:
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# sometimes you do want a default.
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return self.get_default(name)
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# EOF
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