Source code for cattr.preconf.tomlkit
"""Preconfigured converters for tomlkit."""
from base64 import b85decode, b85encode
from datetime import datetime
from typing import Any
from .._compat import Set, is_mapping
from ..converters import GenConverter
from . import validate_datetime
[docs]def configure_converter(converter: GenConverter):
"""
Configure the converter for use with the tomlkit library.
* bytes are serialized as base85 strings
* sets are serialized as lists
* tuples are serializas as lists
* mapping keys are coerced into strings when unstructuring
"""
converter.register_structure_hook(bytes, lambda v, _: b85decode(v))
converter.register_unstructure_hook(
bytes, lambda v: (b85encode(v) if v else b"").decode("utf8")
)
def gen_unstructure_mapping(cl: Any, unstructure_to=None):
return converter.gen_unstructure_mapping(
cl, unstructure_to=unstructure_to, key_handler=str
)
converter._unstructure_func.register_func_list(
[(is_mapping, gen_unstructure_mapping, True)]
)
converter.register_structure_hook(datetime, validate_datetime)
[docs]def make_converter(*args, **kwargs) -> GenConverter:
kwargs["unstruct_collection_overrides"] = {
**kwargs.get("unstruct_collection_overrides", {}),
Set: list,
tuple: list,
}
res = GenConverter(*args, **kwargs)
configure_converter(res)
return res