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Converting an object / dict to a struct where the struct contains a Raw field fails with "Expected any, got ..." #699
Description
Description
Description
Converting using msgspec.convert from an object with from_attributes=True to a struct that contains a Raw field doesn't appear to work.
Example
Given a struct like:
class Wrapper(msgspec.Struct):
result: msgspec.Raw | msgspec.UnsetType = msgspec.UNSETThat is used to deserialise json successfully, e.g b'{"result": {"status": 0}}' => Wrapper(result=<msgspec.Raw object at 0x1028b3bb0>)
However going from an object or dict and trying to msgspec.convert it into a Wrapper doesn't appear to work or am I doing something wrong?
from types import SimpleNamespace
import msgspec
class Wrapper(msgspec.Struct):
result: msgspec.Raw | msgspec.UnsetType = msgspec.UNSET
wrapped = {"status": 0}
raw_bytes = msgspec.json.encode(wrapped)
raw = msgspec.Raw(raw_bytes)
try:
print("wrapped: raw")
ns_a = SimpleNamespace(result=raw)
print(ns_a)
# expected that this would work?
print(msgspec.convert(ns_a, type=Wrapper, from_attributes=True))
except Exception as e:
print(e) # Expected `any`, got `msgspec.Raw` - at `$.result`
try:
print("wrapped: nested namespace")
ns_a = SimpleNamespace(result=SimpleNamespace(status=0))
print(ns_a)
# didn't really expect that this would work
print(msgspec.convert(ns_a, type=Wrapper, from_attributes=True))
except Exception as e:
print(e) # Expected `any`, got `types.SimpleNamespace` - at `$.result`
try:
print("wrapped: bytes")
ns_a = SimpleNamespace(result=raw_bytes)
print(ns_a)
# didn't really expect that this would work but thought it might
print(msgspec.convert(ns_a, type=Wrapper, from_attributes=True))
except Exception as e:
print(e) # Expected `any`, got `bytes` - at `$.result`Expected
ns_a = SimpleNamespace(result=msgspec.Raw(b'{"status":0}'))
print(msgspec.convert(ns_a, type=Wrapper, from_attributes=True))
# Wrapper(result=<msgspec.Raw object at 0x1028b3bb0>)`
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