sandyharvie opened a new issue, #3466:
URL: https://github.com/apache/fory/issues/3466
### Feature Request
I would like to use `pyfory` as a drop-in replacement for `cloudpickle`, but
attempting to serialize a dataclass with a `tuple` field currently results in a
`TypeError`.
```
>>> import pyfory
>>> fory = pyfory.Fory(xlang=False, ref=True, strict=False)
>>> import dataclasses
>>> @dataclasses.dataclass(frozen=True)
... class Foo:
... bar: tuple[str, int]
...
>>> foo = Foo(bar=("a", 1))
>>> fory.serialize(foo)
Traceback (most recent call last):
File "<python-input-28>", line 1, in <module>
fory.serialize(foo)
~~~~~~~~~~~~~~^^^^^
File "python/pyfory/serialization.pyx", line 1292, in
pyfory.serialization.Fory.serialize
File "python/pyfory/serialization.pyx", line 1330, in
pyfory.serialization.Fory._serialize
File "python/pyfory/serialization.pyx", line 1363, in
pyfory.serialization.Fory.write_ref
File "python/pyfory/serialization.pyx", line 1828, in
pyfory.serialization.Serializer.write
File
"/home/charvie/.venv/py313/lib/python3.13/site-packages/pyfory/struct.py", line
1127, in write
self._replace().write(buffer, value)
~~~~~~~~~~~~~^^
File
"/home/charvie/.venv/py313/lib/python3.13/site-packages/pyfory/struct.py", line
1140, in _replace
typeinfo.serializer = DataClassSerializer(self.fory, self.type_,
self.xlang)
~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/charvie/.venv/py313/lib/python3.13/site-packages/pyfory/struct.py", line
343, in __init__
self._field_infos, self._field_metas = _extract_field_infos(fory, clz,
self._type_hints, xlang=xlang)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/charvie/.venv/py313/lib/python3.13/site-packages/pyfory/struct.py", line
248, in _extract_field_infos
serializer = infer_field(field_name, unwrapped_type, visitor,
types_path=[])
File
"/home/charvie/.venv/py313/lib/python3.13/site-packages/pyfory/type_util.py",
line 250, in infer_field
raise TypeError(f"Collection types should be {list, dict} instead of
{type_}")
TypeError: Collection types should be (<class 'list'>, <class 'dict'>)
instead of tuple[str, int]
```
### Is your feature request related to a problem? Please describe
_No response_
### Describe the solution you'd like
_No response_
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
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