I guess you can only flatten/unflatten a valid appstruct (that has been
successfully deserialized). Invalid.asdict() returns a flat dictionary with
error info, but I wouldn't rely on unflattening it with
SchemaNode.unflatten().
The reason I'm interested in this question is that I needed a similar
functionality from Invalid.asdict(). I needed error messages translated in
it, and since they were not, I had to step through the asdict() code and
write my own version of it. Consider this:
...
try:
appstruct = some_schema.deserialize(cstruct)
except Invalid, e:
for path in e.paths():
...
Now paths() has all the 'raw' error (fields and messages) data to
manipulate and construct your own validation error handling mechanism.
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