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View Code? Open in Web Editor NEWObject tree construction and deconstruction library
License: MIT License
Object tree construction and deconstruction library
License: MIT License
from typing import Optional, Dict, Any
import ctor
class Foo:
def __init__(self, foo: Optional[Dict[str, Any]]):
self.foo = foo
ctor.load(Foo, {"foo": None})
expected:
Foo(foo=None)
actual:
AttributeError: 'NoneType' object has no attribute 'items'
code:
from typing import Dict, Type
import ctor
class Base:
pass
class A(Base):
pass
class B(Base):
pass
my_type_map: Dict[str, Type[Base]] = {
"a": A,
"b": B
}
ctor.DiscriminatedConverterFactory(
my_type_map, ctor.ObjectConverterFactory()
)
mypy logs:
/Users/14713703/Library/Application Support/JetBrains/PyCharm2021.3/scratches/test.py:23: error: Argument 1 to "DiscriminatedConverterFactory" has incompatible type "Dict[str, Type[Base]]"; expected "Dict[str, Union[Type[Any], Callable[..., Any]]]" [arg-type]
/Users/14713703/Library/Application Support/JetBrains/PyCharm2021.3/scratches/test.py:23: note: "Dict" is invariant -- see https://mypy.readthedocs.io/en/stable/common_issues.html#variance
/Users/14713703/Library/Application Support/JetBrains/PyCharm2021.3/scratches/test.py:23: note: Consider using "Mapping" instead, which is covariant in the value type
Found 1 error in 1 file (checked 1 source file)
import ctor
from dataclasses import dataclass
@dataclass
class A:
a: str
@dataclass
class B:
b: int
@dataclass
class Foo:
item: Union[A, B]
foo = Foo(item=B(1))
print(ctor.dump(foo))
# expected: {'item': {'b': 1}}
# actual: {'item': {}}
from typing import Optional, List
from dataclasses import dataclass
import ctor
@dataclass
class Foo:
foo: str
@dataclass
class Bar:
bar: str
@dataclass
class ListsAggregate:
first: Optional[List[Foo]] = None
second: Optional[List[Bar]] = None
list_aggregate = ListsAggregate(
first=[Foo("value")],
second=[Bar("value")]
)
ctor.dump(list_aggregate)
raises RecursionError: maximum recursion depth exceeded while calling a Python object
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