fix(deps): update rust crate pyo3 to 0.28

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
pyo3	dependencies	minor	0.24 → 0.28

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Release Notes

pyo3/pyo3 (pyo3)

v0.28.0

Compare Source

Packaging

• Bump MSRV to Rust 1.83. #​5531
• Bump minimum supported quote version to 1.0.37. #​5531
• Bump supported GraalPy version to 25.0. #​5542
• Drop memoffset dependency. #​5545
• Support for free-threaded Python is now opt-out rather than opt-in. #​5564
• Bump target-lexicon dependency to 0.13.3. #​5571
• Drop indoc and unindent dependencies. #​5608

Added

• Add __init__ support in #[pymethods]. #​4951
• Expose PySuper on PyPy, GraalPy and ABI3 #​4951
• Add PyString::from_fmt and py_format! macro. #​5199
• Add #[pyclass(new = "from_fields")] option. #​5421
• Add pyo3::buffer::PyUntypedBuffer, a type-erased form of PyBuffer<T>. #​5458
• Add PyBytes::new_with_writer #​5517
• Add PyClass::NAME. #​5579
• Add pyo3_build_config::add_libpython_rpath_link_args. #​5624
• Add PyBackedStr::clone_ref and PyBackedBytes::clone_ref methods. #​5654
• Add PyCapsule::new_with_pointer and PyCapsule::new_with_pointer_and_destructor for creating capsules with raw pointers. #​5689
• Add #[deleter] attribute to implement property deleters in #[methods]. #​5699
• Add IntoPyObject and FromPyObject implementations for uuid::NonNilUuid. #​5707
• Add PyBackedStr::as_str and PyBackedStr::as_py_str methods. #​5723
• Add support for subclassing native types (PyDict, exceptions, ...) when building for abi3 on Python 3.12+. #​5733
• Add support for subclassing PyList when building for Python 3.12+. #​5734
• FFI definitions:
  • Add FFI definitions PyEval_GetFrameBuiltins, PyEval_GetFrameGlobals and PyEval_GetFrameLocals on Python 3.13 and up. #​5590
  • Add FFI definitions PyObject_New, PyObject_NewVar, PyObject_GC_Resize, PyObject_GC_New, and PyObject_GC_NewVar. #​5591
  • Added FFI definitions and an unsafe Rust API wrapping Py_BEGIN_CRITICAL_SECTION_MUTEX and Py_BEGIN_CRITICAL_SECTION_MUTEX2. #​5642
  • Add FFI definition PyDict_GetItemStringRef on Python 3.13 and up. #​5659
  • Add FFI definition PyIter_NextItem on Python 3.14 and up, and compat::PyIter_NextItem for older versions. #​5661
  • Add FFI definitions PyThreadState_GetInterpreter and PyThreadState_GetID on Python 3.9+, PyThreadState_EnterTracing and PyThreadState_LeaveTracing on Python 3.11+, PyThreadState_GetUnchecked on Python 3.13+, and compat::PyThreadState_GetUnchecked. #​5711
  • Add FFI definitions PyImport_ImportModuleAttr and PyImport_ImportModuleAttrString on Python 3.14+. #​5737
  • Add FFI definitions for the PyABIInfo and PyModExport APIs available in Python 3.15. #​5746
• experimental-inspect:
  • Emit base classes. #​5331
  • Emit @typing.final on final classes. #​5552
  • Generate nested classes for complex enums. #​5708
  • Emit async keyword for async functions. #​5731

Changed

• Call sys.unraisablehook instead of PyErr_Print if panicking on null FFI pointer in Bound, Borrowed and Py constructors. #​5496
• Use PEP-489 multi-phase initialization for #[pymodule]. #​5525
• Deprecate implicit by-value implementation of FromPyObject for #[pyclass]. #​5550
• Deprecate PyTypeInfo::NAME and PyTypeInfo::MODULE. #​5579
• Deprecate Py<T>::from_{owned,borrowed}[or_{err,opt}] constructors from raw pointer. #​5585
• Deprecate FFI definitions PyEval_AcquireLock and PyEval_ReleaseLock. #​5590
• Relax 'py: 'a bound in Py::extract. #​5594
• Add a T: PyTypeCheck bound to the IntoPyObject implementations on Bound<T>, Borrowed<T> and Py<T>. #​5640
• The with_critical_section and with_critical_section2 functions are moved to pyo3::sync::critical_section. #​5642
• Use PyIter_NextItem in PyIterator::next implementation. #​5661
• IntoPyObject for simple enums now uses a singleton value, allowing identity (python is) comparisons. #​5665
• Allow any Sequence[int] in FromPyObject on Cow<[u8]> and change the error type to PyErr. #​5667
• async pymethods now borrow self only for the duration of awaiting the future, not the entire method call. #​5684
• Change CastError formatted message to directly describe the "is not an instance of" failure condition. #​5693
• Add #[inline] hints to many methods on PyBackedStr. #​5723
• Remove redundant internal counters from BoundSetIterator and BoundFrozenSetIterator. #​5725
• Implement PyIterator::size_hint on abi3 builds (previously was only on unlimited API builds). #​5727
• Deprecate FFI definition PyImport_ImportModuleNoBlock (deprecated in Python 3.13). #​5737
• #[new] can now return arbitrary Python objects. #​5739
• experimental-inspect:
  • Introduce TypeHint and make use of it to encode type hint annotations. #​5438
  • Rename PyType{Info,Check}::TYPE_INFO into PyType{Info,Check}::TYPE_HINT. #​5438 #​5619 #​5641
  • Fill annotations on function arguments and return values for all types supported natively by PyO3. #​5634 #​5637 #​5639
  • Use _typeshed.Incomplete instead of typing.Any as default type hint, to make it easier to spot incomplete trait implementations. #​5744
  • Use general Python expression syntax for type hints. #​5671

Removed

• Remove all functionality deprecated in PyO3 0.25 and 0.26. #​5740
• FFI definitions:
  • Remove FFI definition PyEval_GetCallStats (removed from CPython in Python 3.7). #​5590
  • Remove FFI definitions PyEval_AcquireLock and PyEval_ReleaseLock on Python 3.13 and up. #​5590
  • Remove private FFI definitions _PyObject_New, _PyObject_NewVar, _PyObject_GC_Resize, _PyObject_GC_New, and _PyObject_GC_NewVar. #​5591
  • Remove private FFI definitions _PyDict_SetItem_KnownHash, _PyDict_Next, _PyDict_NewPresized, _PyDict_Contains_KnownHash, and _PyDict_Contains. #​5659
  • Remove private FFI definitions _PyFrameEvalFunction, _PyInterpreterState_GetEvalFrameFunc and _PyInterpreterState_SetEvalFrameFunc. #​5711
  • Remove private FFI definitions _PyImport_IsInitialized, _PyImport_SetModule, _PyImport_SetModuleString, _PyImport_AcquireLock, _PyImport_ReleaseLock, _PyImport_FindBuiltin, _PyImport_FindExtensionObject, _PyImport_FixupBuiltin, and _PyImport_FixupExtensionObject. #​5737

Fixed

• Fix PyModuleMethods::add_submodule() to use the last segment of the submodule name as the attribute name on the parent module instead of using the full name. #​5375
• Link with libpython for Cygwin extension modules. #​5571
• Link against the limited API DLL for Cygwin when abi3 is used. #​5574
• Handle errors in PyIterator when calling size_hint #​5604
• Link with libpython for iOS extension modules. #​5605
• Correct IntoPyObject output type of PyBackedStr to be PyString, not PyAny. #​5655
• Fix async functions to return None rather than empty tuple (). #​5685
• Fix compile error when using references to #[pyclass] types (e.g. &MyClass) as arguments to async #[pyfunction]s. #​5725
• FFI definitions:
  • Fix FFI definition PyMemberDescrObject.d_member to use PyMemberDef for Python 3.11+ (was incorrectly PyGetSetDef). #​5647
  • Mark FFI definition PyThreadState_GetFrame available with abi3 in 3.10+. #​5711
  • Fix FFI definition PyImport_GetModule on PyPy. #​5737
• experimental-inspect:
  • fix __new__ return type to be the built object type and not None. #​5555
  • fix imports of decorators. #​5618
  • fix the return type annotation of PyResult<()> (must be None and not tuple) #​5674

v0.27.2

Compare Source

Changed

• Disable subclassing PyDict on GraalPy (unsupported for now, may crash at runtime). #​5653

Fixed

• Fix crash when compiling on Rust 1.92+ with both debug assertions and optimizations enabled. #​5638
• Fix FFI definition of PyDictObject on PyPy. #​5653

v0.27.1

Compare Source

Fixed

• Fix clippy:declare_interior_mutable_const warning from #[pyfunction]. #​5538
• Expose pyo3::types::PySendResult in public API. #​5539

v0.27.0

Compare Source

Packaging

• Extend range of supported versions of hashbrown optional dependency to include version 0.16. #​5428
• Bump optional num-bigint dependency minimum version to 0.4.4. #​5471
• Test against Python 3.14 final release. #​5499
• Drop support for PyPy 3.9 and 3.10. #​5516
• Provide a better error message when building an outdated PyO3 for a too-new Python version. #​5519

Added

• Add FromPyObjectOwned as convenient trait bound for FromPyObject when the data is not borrowed from Python. #​4390
• Add Borrowed::extract, same as PyAnyMethods::extract, but does not restrict the lifetime by deref. #​4390
• experimental-inspect: basic support for #[derive(IntoPyObject)] (no struct fields support yet). #​5365
• experimental-inspect: support #[pyo3(get, set)] and #[pyclass(get_all, set_all)]. #​5370
• Add PyTypeCheck::classinfo_object that returns an object that can be used as parameter in isinstance or issubclass. #​5387
• Implement PyTypeInfo on datetime.* types even when the limited API is enabled. #​5388
• Implement PyTypeInfo on PyIterator, PyMapping and PySequence. #​5402
• Implement PyTypeInfo on PyCode when using the stable ABI. #​5403
• Implement PyTypeInfo on PyWeakrefReference when using the stable ABI. #​5404
• Add pyo3::sync::RwLockExt trait, analogous to pyo3::sync::MutexExt for readwrite locks. #​5435
• Add PyString::from_bytes. #​5437
• Implement AsRef<[u8]> for PyBytes. #​5445
• Add CastError and CastIntoError. #​5468
• Add PyCapsuleMethods::pointer_checked and PyCapsuleMethods::is_valid_checked. #​5474
• Add Borrowed::cast, Borrowed::cast_exact and Borrowed::cast_unchecked. #​5475
• Add conversions for jiff::civil::ISOWeekDate. #​5478
• Add conversions for &Cstr, Cstring and Cow<Cstr>. #​5482
• add #[pyclass(skip_from_py_object)] option, to opt-out of the FromPyObject: PyClass + Clone blanket impl. #​5488
• Add PyErr::add_note. #​5489
• Add FromPyObject impl for Cow<Path> & Cow<OsStr>. #​5497
• Add #[pyclass(from_py_object)] pyclass option, to opt-in to the extraction of pyclasses by value (requires Clone). #​5506

Changed

• Rework FromPyObject trait for flexibility and performance: #​4390
  • Add a second lifetime to FromPyObject, to allow borrowing data from Python objects (e.g. &str from Python str).
  • Replace extract_bound with extract, which takes Borrowed<'a, 'py, PyAny>.
• Optimize FromPyObject implementations for Vec<u8> and [u8; N] from bytes and bytearray. #​5244
• Deprecate #[pyfn] attribute. #​5384
• Fetch type name dynamically on cast errors instead of using PyTypeCheck::NAME. #​5387
• Deprecate PyTypeCheck::NAME in favour of PyTypeCheck::classinfo_object which provides the type information at runtime. #​5387
• PyClassGuard(Mut) and PyRef(Mut) extraction now returns an opaque Rust error #​5413
• Fetch type name dynamically when exporting types implementing PyTypeInfo with #[pymodule_use]. #​5414
• Improve Debug representation of PyBuffer<T>. #​5442
• experimental-inspect: change the way introspection data is emitted in the binaries to avoid a pointer indirection and simplify parsing. #​5450
• Optimize Py<T>::drop for the case when attached to the Python interpreter. #​5454
• Replace DowncastError and DowncastIntoError with CastError and CastIntoError. #​5468
• Enable fast-path for 128-bit integer conversions on GraalPy. #​5471
• Deprecate PyAnyMethods::downcast functions in favour of Bound::cast functions. #​5472
• Make PyTypeCheck an unsafe trait. #​5473
• Deprecate unchecked PyCapsuleMethods: pointer(), reference(), and is_valid(). #​5474
• Reduce lifetime of return value in PyCapsuleMethods::reference. #​5474
• PyCapsuleMethods::name now returns CapsuleName wrapper instead of &CStr. #​5474
• Deprecate import_exception_bound in favour of import_exception. #​5480
• PyList::get_item_unchecked, PyTuple::get_item_unchecked, and PyTuple::get_borrowed_item_unchecked no longer check for null values at the provided index. #​5494
• Allow converting naive datetime into chrono DateTime<Local>. #​5507

Removed

• Removed FromPyObjectBound trait. #​4390

Fixed

• Fix compilation failure on wasm32-wasip2. #​5368
• Fix OsStr conversion for non-utf8 strings on Windows. #​5444
• Fix issue with cargo vendor caused by gitignored build artifact emscripten/pybuilddir.txt. #​5456
• Stop leaking PyMethodDef instances inside #[pyfunction] macro generated code. #​5459
• Don't export definition of FFI struct PyObjectObFlagsAndRefcnt on 32-bit Python 3.14 (doesn't exist). #​5499
• Fix failure to build for abi3 interpreters on Windows using maturin's built-in sysconfig in combination with the generate-import-lib feature. #​5503
• Fix FFI definitions PyModule_ExecDef and PyModule_FromDefAndSpec2 on PyPy. #​5529

v0.26.0

Compare Source

Packaging

• Bump hashbrown dependency to 0.15. #​5152
• Update MSRV to 1.74. #​5171
• Set the same maximum supported version for alternative interpreters as for CPython. #​5192
• Add optional bytes dependency to add conversions for bytes::Bytes. #​5252
• Publish new crate pyo3-introspection to pair with the experimental-inspect feature. #​5300
• The PYO3_BUILD_EXTENSION_MODULE now causes the same effect as the extension-module feature. Eventually we expect maturin and setuptools-rust to set this environment variable automatically. Users with their own build systems will need to do the same. #​5343

Added

• Add #[pyo3(warn(message = "...", category = ...))] attribute for automatic warnings generation for #[pyfunction] and #[pymethods]. #​4364
• Add PyMutex, available on Python 3.13 and newer. #​4523
• Add FFI definition PyMutex_IsLocked, available on Python 3.14 and newer. #​4523
• Add PyString::from_encoded_object. #​5017
• experimental-inspect: add basic input type annotations. #​5089
• Add FFI function definitions for PyFrameObject from CPython 3.13. #​5154
• experimental-inspect: tag modules created using #[pymodule] or #[pymodule_init] functions as incomplete. #​5207
• experimental-inspect: add basic return type support. #​5208
• Add PyCode::compile and PyCodeMethods::run to create and execute code objects. #​5217
• Add PyOnceLock type for thread-safe single-initialization. #​5223
• Add PyClassGuard(Mut) pyclass holders. In the future they will replace PyRef(Mut). #​5233
• experimental-inspect: allow annotations in #[pyo3(signature)] signature attribute. #​5241
• Implement MutexExt for parking_lot's/lock_api ReentrantMutex. #​5258
• experimental-inspect: support class associated constants. #​5272
• Add Bound::cast family of functions superseding the PyAnyMethods::downcast family. #​5289
• Add FFI definitions Py_Version and Py_IsFinalizing. #​5317
• experimental-inspect: add output type annotation for #[pyclass]. #​5320
• experimental-inspect: support #[pyclass(eq, eq_int, ord, hash, str)]. #​5338
• experimental-inspect: add basic support for #[derive(FromPyObject)] (no struct fields support yet). #​5339
• Add Python::try_attach. #​5342

Changed

• Use Py_TPFLAGS_DISALLOW_INSTANTIATION instead of a __new__ which always fails for a #[pyclass] without a #[new] on Python 3.10 and up. #​4568
• PyModule::from_code now defaults file_name to <string> if empty. #​4777
• Deprecate PyString::from_object in favour of PyString::from_encoded_object. #​5017
• When building with abi3 for a Python version newer than pyo3 supports, automatically fall back to an abi3 build for the latest supported version. #​5144
• Change is_instance_of trait bound from PyTypeInfo to PyTypeCheck. #​5146
• Many PyO3 proc macros now report multiple errors instead of only the first one. #​5159
• Change MutexExt return type to be an associated type. #​5201
• Use PyCallArgs for Py::call and friends so they're equivalent to their Bound counterpart. #​5206
• Rename Python::with_gil to Python::attach. #​5209
• Rename Python::allow_threads to Python::detach #​5221
• Deprecate GILOnceCell type in favour of PyOnceLock. #​5223
• Rename pyo3::prepare_freethreaded_python to Python::initialize. #​5247
• Convert PyMemoryError into/from io::ErrorKind::OutOfMemory. #​5256
• Deprecate GILProtected. #​5285
• Move #[pyclass] docstring formatting from import time to compile time. #​5286
• Python::attach will now panic if the Python interpreter is in the process of shutting down. #​5317
• Add fast-path to PyTypeInfo::type_object for #[pyclass] types. #​5324
• Deprecate PyObject type alias for Py<PyAny>. #​5325
• Rename Python::with_gil_unchecked to Python::attach_unchecked. #​5340
• Rename Python::assume_gil_acquired to Python::assume_attached. #​5354

Removed

• Remove FFI definition of internals of PyFrameObject. #​5154
• Remove Eq and PartialEq implementations on PyGetSetDef FFI definition. #​5196
• Remove private FFI definitions _Py_IsCoreInitialized and _Py_InitializeMain. #​5317

Fixed

• Use critical section in PyByteArray::to_vec on freethreaded build to replicate GIL-enabled "soundness". #​4742
• Fix precision loss when converting bigdecimal into Python. #​5198
• Don't treat win7 target as a cross-compilation. #​5210
• WASM targets no longer require exception handling support for Python < 3.14. #​5239
• Fix segfault when dropping PyBuffer<T> after the Python interpreter has been finalized. #​5242
• experimental-inspect: better automated imports generation. #​5251
• experimental-inspect: fix introspection of __richcmp__, __concat__, __repeat__, __inplace_concat__ and __inplace_repeat__. #​5273
• fixed a leaked borrow, when converting a mutable sub class into a frozen base class using PyRef::into_super #​5281
• Fix FFI definition Py_Exit (never returns, was () return value, now !). #​5317
• experimental-inspect: fix handling of module members gated behind #[cfg(...)] attributes. #​5318

v0.25.1

Compare Source

Packaging

• Add support for Windows on ARM64. #​5145
• Add chrono-local feature for optional conversions for chrono's Local timezone & DateTime<Local> instances. #​5174

Added

• Add FFI definition PyBytes_AS_STRING. #​5121
• Add support for module associated consts introspection. #​5150

Changed

• Enable "vectorcall" FFI definitions on GraalPy. #​5121
• Use Py_Is function on GraalPy #​5121

Fixed

• Report a better compile error for async declarations when not using experimental-async feature. #​5156
• Fix implementation of FromPyObject for uuid::Uuid on big-endian architectures. #​5161
• Fix segmentation faults on 32-bit x86 with Python 3.14. #​5180

v0.25.0

Compare Source

Packaging

• Support Python 3.14.0b1. #​4811
• Bump supported GraalPy version to 24.2. #​5116
• Add optional bigdecimal dependency to add conversions for bigdecimal::BigDecimal. #​5011
• Add optional time dependency to add conversions for time types. #​5057
• Remove cfg-if dependency. #​5110
• Add optional ordered_float dependency to add conversions for ordered_float::NotNan and ordered_float::OrderedFloat. #​5114

Added

• Add initial type stub generation to the experimental-inspect feature. #​3977
• Add #[pyclass(generic)] option to support runtime generic typing. #​4926
• Implement OnceExt & MutexExt for parking_lot & lock_api. Use the new extension traits by enabling the arc_lock, lock_api, or parking_lot cargo features. #​5044
• Implement From/Into for Borrowed<T> -> Py<T>. #​5054
• Add PyTzInfo constructors. #​5055
• Add FFI definition PY_INVALID_STACK_EFFECT. #​5064
• Implement AsRef<Py<PyAny>> for Py<T>, Bound<T> and Borrowed<T>. #​5071
• Add FFI definition PyModule_Add and compat::PyModule_Add. #​5085
• Add FFI definitions Py_HashBuffer, Py_HashPointer, and PyObject_GenericHash. #​5086
• Support #[pymodule_export] on const items in declarative modules. #​5096
• Add #[pyclass(immutable_type)] option (on Python 3.14+ with abi3, or 3.10+ otherwise) for immutable type objects. #​5101
• Support #[pyo3(rename_all)] support on #[derive(IntoPyObject)]. #​5112
• Add PyRange wrapper. #​5117

Changed

• Enable use of datetime types with abi3 feature enabled. #​4970
• Deprecate timezone_utc in favor of PyTzInfo::utc. #​5055
• Reduce visibility of some CPython implementation details: #​5064
  • The FFI definition PyCodeObject is now an opaque struct on all Python versions.
  • The FFI definition PyFutureFeatures is now only defined up until Python 3.10 (it was present in CPython headers but unused in 3.11 and 3.12).
• Change PyAnyMethods::is to take other: &Bound<T>. #​5071
• Change Py::is to take other: &Py<T>. #​5071
• Change PyVisit::call to take T: Into<Option<&Py<T>>>. #​5071
• Expose PyDateTime_DATE_GET_TZINFO and PyDateTime_TIME_GET_TZINFO on PyPy 3.10 and later. #​5079
• Add #[track_caller] to with_gil and with_gil_unchecked. #​5109
• Use std::thread::park() instead of libc::pause() or sleep(9999999). #​5115

Removed

• Remove all functionality deprecated in PyO3 0.23. #​4982
• Remove deprecated IntoPy and ToPyObject traits. #​5010
• Remove private types from pyo3-ffi (i.e. starting with _Py) which are not referenced by public APIs: _PyLocalMonitors, _Py_GlobalMonitors, _PyCoCached, _PyCoLineInstrumentationData, _PyCoMonitoringData, _PyCompilerSrcLocation, _PyErr_StackItem. #​5064
• Remove FFI definition PyCode_GetNumFree (PyO3 cannot support it due to knowledge of the code object). #​5064
• Remove AsPyPointer trait. #​5071
• Remove support for the deprecated string form of from_py_with. #​5097
• Remove FFI definitions of private static variables: _PyMethodWrapper_Type, _PyCoroWrapper_Type, _PyImport_FrozenBootstrap, _PyImport_FrozenStdlib, _PyImport_FrozenTest, _PyManagedBuffer_Type, _PySet_Dummy, _PyWeakref_ProxyType, and _PyWeakref_CallableProxyType. #​5105
• Remove FFI definitions PyASCIIObjectState, PyUnicode_IS_ASCII, PyUnicode_IS_COMPACT, and PyUnicode_IS_COMPACT_ASCII on Python 3.14 and newer. #​5133

Fixed

• Correctly pick up the shared state for conda-based Python installation when reading information from sysconfigdata. #​5037
• Fix compile failure with #[derive(IntoPyObject, FromPyObject)] when using #[pyo3()] options recognised by only one of the two derives. #​5070
• Fix various compile errors from missing FFI definitions using certain feature combinations on PyPy and GraalPy. #​5091
• Fallback on backports.zoneinfo for python <3.9 when converting timezones into python. #​5120

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