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fix: get_attr_data doesn't handle default factory correctly #1134

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fix: get_attr_data doesn't handle default factory correctly #1134

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ef5cca5
Support Factory in attrs.
bzczb Oct 22, 2023
942a8fc
missed an important case
bzczb Oct 22, 2023
9d56051
Missing format_and_raise(), add test for attrs takes_self.
bzczb Oct 22, 2023
0c96518
add news fragment
Jasha10 Nov 5, 2023
95fcc64
Replace simple lambda with direct call to object
Jasha10 Nov 5, 2023
aa9a970
Make ConfigValueError test more specific
Jasha10 Nov 5, 2023
222c4b5
polish mypy inference for attr.Factory
Jasha10 Nov 5, 2023
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1 change: 1 addition & 0 deletions news/945.bugfix
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix handling of `attrs` classes that use a default factory (`attrs.Factory`).
16 changes: 14 additions & 2 deletions omegaconf/_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -331,9 +331,21 @@ def get_attr_data(obj: Any, allow_objects: Optional[bool] = None) -> Dict[str, A
if not is_type:
value = getattr(obj, name)
else:
value = attrib.default
if value == attr.NOTHING:
default = attrib.default
if default == attr.NOTHING:
value = MISSING
elif isinstance(default, attr.Factory): # type: ignore
if default.takes_self: # type: ignore
e = ConfigValueError(
"'takes_self' in attrs attributes is not supported\n"
+ f"{name}: {type_str(type_)}"
)
format_and_raise(
node=None, key=None, value=default, cause=e, msg=str(e)
)
value = default.factory() # type: ignore
else:
value = default
if is_union_annotation(type_) and not is_supported_union_annotation(type_):
e = ConfigValueError(
f"Unions of containers are not supported:\n{name}: {type_str(type_)}"
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