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fix: raise exception when type of DocList is object #1794

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Merged
merged 2 commits into from
Sep 19, 2023
Merged

fix: raise exception when type of DocList is object #1794

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8266238
fix: raise exception when type of DocList is object
punndcoder28 Sep 16, 2023
2c41809
Merge branch 'main' into fix_bug_doclist_type
punndcoder28 Sep 19, 2023
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13 changes: 10 additions & 3 deletions 13 docarray/array/doc_list/doc_list.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@

from pydantic import parse_obj_as
from typing_extensions import SupportsIndex
from typing_inspect import is_union_type
from typing_inspect import is_union_type, is_typevar

from docarray.array.any_array import AnyDocArray
from docarray.array.doc_list.io import IOMixinDocList
Expand Down Expand Up @@ -337,8 +337,15 @@ def __class_getitem__(cls, item: Union[Type[BaseDoc], TypeVar, str]):

if isinstance(item, type) and safe_issubclass(item, BaseDoc):
return AnyDocArray.__class_getitem__.__func__(cls, item) # type: ignore
else:
return super().__class_getitem__(item)
if (
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should we better have an elif?

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Since each condition has a terminating condition from the function wouldn't multiple if's be similar to elif? If there was a scenario like below an elif would definitely make it much better. In the above case, we check the instance of item and based on the condition we return a type or raise an exception. But if the code base follows if ... elif ... else blocks I would love to keep it uniform so that it is easy to maintain

computation
if condn1:
   computation = value1
elif condn2:
   computation = value2
else:
   computation = value3

return computation

isinstance(item, object)
and not is_typevar(item)
and not isinstance(item, str)
and item is not Any
):
raise TypeError('Expecting a type, got object instead')

return super().__class_getitem__(item)

def __repr__(self):
return AnyDocArray.__repr__(self) # type: ignore
Expand Down
10 changes: 10 additions & 0 deletions 10 tests/units/array/test_array.py
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Expand Up @@ -487,3 +487,13 @@ def test_legacy_doc():
newDoc = LegacyDocument()
da = DocList[LegacyDocument]([newDoc])
da.summary()


def test_parameterize_list():
from docarray import DocList, BaseDoc

with pytest.raises(TypeError) as excinfo:
doc = DocList[BaseDoc()]
assert doc is None

assert str(excinfo.value) == 'Expecting a type, got object instead'
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