Use Unconstructible trait for internal types #6052
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youknowone
reviewed
Aug 1, 2025
stdlib/src/sqlite.rs
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| #[derive(Debug, PyPayload)] | ||
| struct Blob { | ||
| connection: PyRef<Connection>, | ||
| #[pytraverse(skip)] | ||
| inner: PyMutex<Option<BlobInner>>, | ||
| } | ||
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| impl Constructor for Blob { |
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Could you check if Unconstructible works?
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| impl Constructor for Blob { | |
| impl Unconstructible for Blob { |
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We can proceed with this fix by adding single quotes to the error message. I will apply the patch for now.
- Err(vm.new_type_error(format!("cannot create {} instances", cls.slot_name())))
+ Err(vm.new_type_error(format!("cannot create '{}' instances", cls.slot_name())))sqlite3.{Statement,Blob}
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ref
Py_TPFLAGS_DISALLOW_INSTANTIATIONSummary by CodeRabbit
Summary by CodeRabbit
BlobandStatementobjects in the sqlite3 module from Python, ensuring a clear error is raised if attempted.