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Don't unregister subtree if only the child is unset.
Because now, grandchildren may have set values.
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@ -446,16 +446,23 @@ class Value(Group):
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100) convert to an integer in set() and check that the integer is less
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than 100 in this method. You *must* call this parent method in your
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own setValue."""
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self._setValue(v, inherited=False)
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def _setValue(self, v, inherited):
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"""Like setValue, but accepted an extra 'inherited' argument.
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inherited=True means the value is inherited from the parent, so if
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the parent gets a new value, this group will get the new value as
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well."""
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self._lastModified = time.time()
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self.value = v
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if self._supplyDefault:
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for (name, v) in list(self._children.items()):
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if not v._wasSet:
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self.unregister(name)
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for (name, child) in list(self._children.items()):
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if not child._wasSet:
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child._setValue(v, inherited=True)
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# We call the callback once everything is clean
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for callback, args, kwargs in self._callbacks:
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callback(*args, **kwargs)
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self._wasSet = True
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self._wasSet = not inherited
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def context(self, value):
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"""Return a context manager object, which sets this variable to a
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