szha commented on a change in pull request #10511: add naming tutorial
URL: https://github.com/apache/incubator-mxnet/pull/10511#discussion_r181282688
##########
File path: python/mxnet/gluon/block.py
##########
@@ -187,17 +187,17 @@ def __setattr__(self, name, value):
existing = getattr(self, name)
if isinstance(existing, (Parameter, Block)) and not
isinstance(value, type(existing)):
raise TypeError('Changing attribute type for {name} from
{type1} to {type2}' \
- 'is not allowed.'.format(name=name,
- type1=type(existing),
- type2=type(value)))
- if isinstance(existing, Block):
- for i, c in enumerate(self._children):
- if c is existing:
- self._children[i] = value
- elif isinstance(value, Block):
- self.register_child(value)
- elif isinstance(value, Block):
- self.register_child(value)
+ 'is not allowed.'.format(
+ name=name, type1=type(existing),
type2=type(value)))
+
+ if isinstance(value, Block):
+ self.register_child(value, name)
Review comment:
Removing the block update logic can cause having stale blocks in `_children`.
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