Simplified code [skip ci]

Author: ankane

pgvector/django/halfvec.py

@@ -28,13 +28,9 @@ def from_db_value(self, value: Any, expression: Any, connection: Any) -> list[fl
         return HalfVector._from_db(value)
 
     def to_python(self, value: Any) -> list[float] | None:
-        if value is None or isinstance(value, list):
+        if isinstance(value, list):
             return value
-        if isinstance(value, str):
-            value = HalfVector.from_text(value)
-        elif not isinstance(value, HalfVector):
-            value = HalfVector(value)
-        return value.to_list()  # type: ignore
+        return HalfVector._from_db(value)
 
     def get_prep_value(self, value: Any) -> str | None:
         return HalfVector._to_db(value)

pgvector/django/vector.py

@@ -28,13 +28,9 @@ def from_db_value(self, value: Any, expression: Any, connection: Any) -> list[fl
         return Vector._from_db(value)
 
     def to_python(self, value: Any) -> list[float] | None:
-        if value is None or isinstance(value, list):
+        if isinstance(value, list):
             return value
-        if isinstance(value, str):
-            value = Vector.from_text(value)
-        elif not isinstance(value, Vector):
-            value = Vector(value)
-        return value.to_list()  # type: ignore
+        return Vector._from_db(value)
 
     def get_prep_value(self, value: Any) -> str | None:
         return Vector._to_db(value)