fix(deps): update rust crate pyo3 to 0.20 - autoclosed

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
pyo3	dependencies	minor	0.15 -> 0.20

---

Release Notes

pyo3/pyo3 (pyo3)

v0.20.0

Compare Source

Packaging

• Dual-license PyO3 under either the Apache 2.0 OR the MIT license. This makes the project GPLv2 compatible. #​3108
• Update MSRV to Rust 1.56. #​3208
• Bump indoc dependency to 2.0 and unindent dependency to 0.2. #​3237
• Bump syn dependency to 2.0. #​3239
• Drop support for debug builds of Python 3.7. #​3387
• Bump chrono optional dependency to require 0.4.25 or newer. #​3427
• Support Python 3.12. #​3488

Added

• Support __lt__, __le__, __eq__, __ne__, __gt__ and __ge__ in #[pymethods]. #​3203
• Add FFI definition Py_GETENV. #​3336
• Add as_ptr and into_ptr inherent methods for Py, PyAny, PyRef, and PyRefMut. #​3359
• Implement DoubleEndedIterator for PyTupleIterator and PyListIterator. #​3366
• Add #[pyclass(rename_all = "...")] option: this allows renaming all getters and setters of a struct, or all variants of an enum. Available renaming rules are: "camelCase", "kebab-case", "lowercase", "PascalCase", "SCREAMING-KEBAB-CASE", "SCREAMING_SNAKE_CASE", "snake_case", "UPPERCASE". #​3384
• Add FFI definitions PyObject_GC_IsTracked and PyObject_GC_IsFinalized on Python 3.9 and up (PyPy 3.10 and up). #​3403
• Add types for None, Ellipsis, and NotImplemented. #​3408
• Add FFI definitions for the Py_mod_multiple_interpreters constant and its possible values. #​3494
• Add FFI definitions for PyInterpreterConfig struct, its constants and Py_NewInterpreterFromConfig. #​3502

Changed

• Change PySet::discard to return PyResult<bool> (previously returned nothing). #​3281
• Optimize implmentation of IntoPy for Rust tuples to Python tuples. #​3321
• Change PyDict::get_item to no longer suppress arbitrary exceptions (the return type is now PyResult<Option<&PyAny>> instead of Option<&PyAny>), and deprecate PyDict::get_item_with_error. #​3330
• Deprecate FFI definitions which are deprecated in Python 3.12. #​3336
• AsPyPointer is now an unsafe trait. #​3358
• Accept all os.PathLike values in implementation of FromPyObject for PathBuf. #​3374
• Add __builtins__ to globals in py.run() and py.eval() if they're missing. #​3378
• Optimize implementation of FromPyObject for BigInt and BigUint. #​3379
• PyIterator::from_object and PyByteArray::from now take a single argument of type &PyAny (previously took two arguments Python and AsPyPointer). #​3389
• Replace AsPyPointer with AsRef<PyAny> as a bound in the blanket implementation of From<&T> for PyObject. #​3391
• Replace blanket impl IntoPy<PyObject> for &T where T: AsPyPointer with implementations of impl IntoPy<PyObject> for &PyAny, &T where T: AsRef<PyAny>, and &Py<T>. #​3393
• Preserve std::io::Error kind in implementation of From<std::io::IntoInnerError> for PyErr #​3396
• Try to select a relevant ErrorKind in implementation of From<PyErr> for OSError subclass. #​3397
• Retrieve the original PyErr in implementation of From<std::io::Error> for PyErr if the std::io::Error has been built using a Python exception (previously would create a new exception wrapping the std::io::Error). #​3402
• #[pymodule] will now return the same module object on repeated import by the same Python interpreter, on Python 3.9 and up. #​3446
• Truncate leap-seconds and warn when converting chrono types to Python datetime types (datetime cannot represent leap-seconds). #​3458
• Err returned from #[pyfunction] will now have a non-None __context__ if called from inside a catch block. #​3455
• Deprecate undocumented #[__new__] form of #[new] attribute. #​3505

Removed

• Remove all functionality deprecated in PyO3 0.18, including #[args] attribute for #[pymethods]. #​3232
• Remove IntoPyPointer trait in favour of into_ptr inherent methods. #​3385

Fixed

• Handle exceptions properly in PySet::discard. #​3281
• The PyTupleIterator type returned by PyTuple::iter is now public and hence can be named by downstream crates. #​3366
• Linking of PyOS_FSPath on PyPy. #​3374
• Fix memory leak in PyTypeBuilder::build. #​3401
• Disable removed FFI definitions _Py_GetAllocatedBlocks, _PyObject_GC_Malloc, and _PyObject_GC_Calloc on Python 3.11 and up. #​3403
• Fix ResourceWarning and crashes related to GC when running with debug builds of CPython. #​3404
• Some-wrapping of Option<T> default arguments will no longer re-wrap Some(T) or expressions evaluating to None. #​3461
• Fix IterNextOutput::Return not returning a value on PyPy. #​3471
• Emit compile errors instead of ignoring macro invocations inside #[pymethods] blocks. #​3491
• Emit error on invalid arguments to #[new], #[classmethod], #[staticmethod], and #[classattr]. #​3484
• Disable PyMarshal_WriteObjectToString from PyMarshal_ReadObjectFromString with the abi3 feature. #​3490
• Fix FFI definitions for _PyFrameEvalFunction on Python 3.11 and up (it now receives a _PyInterpreterFrame opaque struct). #​3500

v0.19.2

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Added

• Add FFI definitions PyState_AddModule, PyState_RemoveModule and PyState_FindModule for PyPy 3.9 and up. #​3295
• Add FFI definitions _PyObject_CallFunction_SizeT and _PyObject_CallMethod_SizeT. #​3297
• Add a "performance" section to the guide collecting performance-related tricks and problems. #​3304
• Add PyErr::Display for all Python versions, and FFI symbol PyErr_DisplayException for Python 3.12. #​3334
• Add FFI definition PyType_GetDict() for Python 3.12. #​3339
• Add PyAny::downcast_exact. #​3346
• Add PySlice::full() to construct a full slice (::). #​3353

Changed

• Update PyErr for 3.12 betas to avoid deprecated ffi methods. #​3306
• Update FFI definitions of object.h for Python 3.12.0b4. #​3335
• Update pyo3::ffi struct definitions to be compatible with 3.12.0b4. #​3342
• Optimize conversion of float to f64 (and PyFloat::value) on non-abi3 builds. #​3345

Fixed

• Fix timezone conversion bug for FixedOffset datetimes that were being incorrectly converted to and from UTC. #​3269
• Fix SystemError raised in PyUnicodeDecodeError_Create on PyPy 3.10. #​3297
• Correct FFI definition Py_EnterRecursiveCall to return c_int (was incorrectly returning ()). #​3300
• Fix case where PyErr::matches and PyErr::is_instance returned results inconsistent with PyErr::get_type. #​3313
• Fix loss of panic message in PanicException when unwinding after the exception was "normalized". #​3326
• Fix PyErr::from_value and PyErr::into_value losing traceback on conversion. #​3328
• Fix reference counting of immortal objects on Python 3.12.0b4. #​3335

v0.19.1

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Packaging

• Extend range of supported versions of hashbrown optional dependency to include version 0.14 #​3258
• Extend range of supported versions of indexmap optional dependency to include version 2. #​3277
• Support PyPy 3.10. #​3289

Added

• Add pyo3::types::PyFrozenSetBuilder to allow building a PyFrozenSet item by item. #​3156
• Add support for converting to and from Python's ipaddress.IPv4Address/ipaddress.IPv6Address and std::net::IpAddr. #​3197
• Add support for num-bigint feature in combination with abi3. #​3198
• Add PyErr_GetRaisedException(), PyErr_SetRaisedException() to FFI definitions for Python 3.12 and later. #​3248
• Add Python::with_pool which is a safer but more limited alternative to Python::new_pool. #​3263
• Add PyDict::get_item_with_error on PyPy. #​3270
• Allow #[new] methods may to return Py<Self> in order to return existing instances. #​3287

Fixed

• Fix conversion of classes implementing __complex__ to Complex when using abi3 or PyPy. #​3185
• Stop suppressing unrelated exceptions in PyAny::hasattr. #​3271
• Fix memory leak when creating PySet or PyFrozenSet or returning types converted into these internally, e.g. HashSet or BTreeSet. #​3286

v0.19.0

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Packaging

• Correct dependency on syn to version 1.0.85 instead of the incorrect version 1.0.56. #​3152

Added

• Accept text_signature option (and automatically generate signature) for #[new] in #[pymethods]. #​2980
• Add support for converting to and from Python's decimal.Decimal and rust_decimal::Decimal. #​3016
• Add #[pyo3(from_item_all)] when deriving FromPyObject to specify get_item as getter for all fields. #​3120
• Add pyo3::exceptions::PyBaseExceptionGroup for Python 3.11, and corresponding FFI definition PyExc_BaseExceptionGroup. #​3141
• Accept #[new] with #[classmethod] to create a constructor which receives a (subtype's) class/PyType as its first argument. #​3157
• Add PyClass::get and Py::get for GIL-indepedent access to classes with #[pyclass(frozen)]. #​3158
• Add PyAny::is_exact_instance and PyAny::is_exact_instance_of. #​3161

Changed

• PyAny::is_instance_of::<T>(obj) is now equivalent to T::is_type_of(obj), and now returns bool instead of PyResult<bool>. #​2881
• Deprecate text_signature option on #[pyclass] structs. #​2980
• No longer wrap anyhow::Error/eyre::Report containing a basic PyErr without a chain in a PyRuntimeError. #​3004
• • Change #[getter] and #[setter] to use a common call "trampoline" to slightly reduce generated code size and compile times. #​3029
• Improve default values for str, numbers and bool in automatically-generated text_signature. #​3050
• Improve default value for None in automatically-generated text_signature. #​3066
• Rename PySequence::list and PySequence::tuple to PySequence::to_list and PySequence::to_tuple. (The old names continue to exist as deprecated forms.) #​3111
• Extend the lifetime of the GIL token returned by PyRef::py and PyRefMut::py to match the underlying borrow. #​3131
• Safe access to the GIL, for example via Python::with_gil, is now locked inside of implementations of the __traverse__ slot. #​3168

Removed

• Remove all functionality deprecated in PyO3 0.17, most prominently Python::acquire_gil is replaced by Python::with_gil. #​2981

Fixed

• Correct FFI definitions PyGetSetDef, PyMemberDef, PyStructSequence_Field and PyStructSequence_Desc to have *const c_char members for name and doc (not *mut c_char). #​3036
• Fix panic on fmt::Display, instead return "<unprintable object>" string and report error via sys.unraisablehook() #​3062
• Fix a compile error of "temporary value dropped while borrowed" when #[pyfunction]s take references into #[pyclass]es #​3142
• Fix crashes caused by PyO3 applying deferred reference count updates when entering a __traverse__ implementation. #​3168
• Forbid running the Drop implementations of unsendable classes on other threads. #​3176
• Fix a compile error when #[pymethods] items come from somewhere else (for example, as a macro argument) and a custom receiver like Py<Self> is used. #​3178

v0.18.3

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Added

• Add GILProtected<T> to mediate concurrent access to a value using Python's global interpreter lock (GIL). #​2975
• Support PyASCIIObject / PyUnicode and associated methods on big-endian architectures. #​3015
• Add FFI definition _PyDict_Contains_KnownHash() for CPython 3.10 and up. #​3088

Fixed

• Fix compile error for #[pymethods] and #[pyfunction] called "output". #​3022
• Fix compile error in generated code for magic methods implemented as a #[staticmethod]. #​3055
• Fix is_instance for PyDateTime (would incorrectly check for a PyDate). #​3071
• Fix upstream deprecation of PyUnicode_InternImmortal since Python 3.10. #​3071

v0.18.2

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Packaging

• Disable default features of chrono to avoid depending on time v0.1.x. #​2939

Added

• Implement IntoPy<PyObject>, ToPyObject and FromPyObject for Cow<[u8]> to efficiently handle both bytes and bytearray objects. #​2899
• Implement IntoPy<PyObject>, ToPyObject and FromPyObject for Cell<T>. #​3014
• Add PyList::to_tuple(), as a convenient and efficient conversion from lists to tuples. #​3042
• Add PyTuple::to_list(), as a convenient and efficient conversion from tuples to lists. #​3044

Changed

• Optimize PySequence conversion for list and tuple inputs. #​2944
• Improve exception raised when creating #[pyclass] type object fails during module import. #​2947
• Optimize PyMapping conversion for dict inputs. #​2954
• Allow create_exception! to take a dotted.module to place the exception in a submodule. #​2979

Fixed

• Fix a reference counting race condition affecting PyObjects cloned in allow_threads blocks. #​2952
• Fix clippy::redundant_closure lint on default arguments in #[pyo3(signature = (...))] annotations. #​2990
• Fix non_snake_case lint on generated code in #[pyfunction] macro. #​2993
• Fix some FFI definitions for the upcoming PyPy 3.10 release. #​3031

v0.18.1

Compare Source

Added

• Add PyErr::write_unraisable(). #​2889
• Add Python::Ellipsis() and PyAny::is_ellipsis() methods. #​2911
• Add PyDict::update() and PyDict::update_if_missing() methods. #​2912

Changed

• FFI definition PyIter_Check on CPython 3.7 is now implemented as hasattr(type(obj), "__next__"), which works correctly on all platforms and adds support for abi3. #​2914
• Warn about unknown config keys in PYO3_CONFIG_FILE instead of denying. #​2926

Fixed

• Send errors returned by __releasebuffer__ to sys.unraisablehook rather than causing SystemError. #​2886
• Fix downcast to PyIterator succeeding for Python classes which did not implement __next__. #​2914
• Fix segfault in __traverse__ when visiting None fields of Option<T: AsPyPointer>. #​2921
• Fix #[pymethods(crate = "...")] option being ignored. #​2923
• Link against pythonXY_d.dll for debug Python builds on Windows. #​2937

v0.18.0

Compare Source

Packaging

• Relax indexmap optional depecency to allow >= 1.6, < 2. #​2849
• Relax hashbrown optional dependency to allow >= 0.9, < 0.14. #​2875
• Update memoffset dependency to 0.8. #​2875

Added

• Add GILOnceCell::get_or_try_init for fallible GILOnceCell initialization. #​2398
• Add experimental feature experimental-inspect with type_input() and type_output() helpers to get the Python type of any Python-compatible object. #​2490 #​2882
• The #[pyclass] macro can now take get_all and set_all to create getters and setters for every field. #​2692
• Add #[pyo3(signature = (...))] option for #[pyfunction] and #[pymethods]. #​2702
• pyo3-build-config: rebuild when PYO3_ENVIRONMENT_SIGNATURE environment variable value changes. #​2727
• Add conversions between non-zero int types in std::num and Python int. #​2730
• Add Py::downcast() as a companion to PyAny::downcast(), as well as downcast_unchecked() for both types. #​2734
• Add types for all built-in Warning classes as well as PyErr::warn_explicit. #​2742
• Add abi3-py311 feature. #​2776
• Add FFI definition _PyErr_ChainExceptions() for CPython. #​2788
• Add FFI definitions PyVectorcall_NARGS and PY_VECTORCALL_ARGUMENTS_OFFSET for PyPy 3.8 and up. #​2811
• Add PyList::get_item_unchecked for PyPy. #​2827

Changed

• PyO3's macros now emit a much nicer error message if function return values don't implement the required trait(s). #​2664
• Use a TypeError, rather than a ValueError, when refusing to treat a str as a Vec. #​2685
• Change PyCFunction::new_closure to take name and doc arguments. #​2686
• PyType::is_subclass, PyErr::is_instance and PyAny::is_instance now take &PyAny instead of &PyType arguments, so that they work with objects that pretend to be types using __subclasscheck__ and __instancecheck__. #​2695
• Deprecate #[args] attribute and passing "args" specification directly to #[pyfunction] in favor of the new #[pyo3(signature = (...))] option. #​2702
• Deprecate required arguments after Option<T> arguments to #[pyfunction] and #[pymethods] without also using #[pyo3(signature)] to specify whether the arguments should be required or have defaults. #​2703
• Change #[pyfunction] and #[pymethods] to use a common call "trampoline" to slightly reduce generated code size and compile times. #​2705
• PyAny::cast_as() and Py::cast_as() are now deprecated in favor of PyAny::downcast() and the new Py::downcast(). #​2734
• Relax lifetime bounds on PyAny::downcast(). #​2734
• Automatically generate __text_signature__ for all Python functions created using #[pyfunction] and #[pymethods]. #​2784
• Accept any iterator in PySet::new and PyFrozenSet::new. #​2795
• Mixing #[cfg(...)] and #[pyo3(...)] attributes on #[pyclass] struct fields will now work. #​2796
• Re-enable PyFunction on when building for abi3 or PyPy. #​2838
• Improve derive(FromPyObject) to use intern! when applicable for #[pyo3(item)]. #​2879

Removed

• Remove the deprecated pyproto feature, #[pyproto] macro, and all accompanying APIs. #​2587
• Remove all functionality deprecated in PyO3 0.16. #​2843

Fixed

• Disable PyModule::filename on PyPy. #​2715
• PyCodeObject is now once again defined with fields on Python 3.7. #​2726
• Raise a TypeError if #[new] pymethods with no arguments receive arguments when called from Python. #​2749
• Use the NOARGS argument calling convention for methods that have a single py: Python argument (as a performance optimization). #​2760
• Fix truncation of isize values to c_long in PySlice::new. #​2769
• Fix soundness issue with FFI definition PyUnicodeDecodeError_Create on PyPy leading to indeterminate behavior (typically a TypeError). #​2772
• Allow functions taking **kwargs to accept keyword arguments which share a name with a positional-only argument (as permitted by PEP 570). #​2800
• Fix unresolved symbol for PyObject_Vectorcall on PyPy 3.9 and up. #​2811
• Fix memory leak in PyCFunction::new_closure. #​2842

v0.17.3

Compare Source

Packaging

• Support Python 3.11. (Previous versions of PyO3 0.17 have been tested against Python 3.11 release candidates and are expected to be compatible, this is the first version tested against Python 3.11.0.) #​2708

Added

• Implemented ExactSizeIterator for PyListIterator, PyDictIterator, PySetIterator and PyFrozenSetIterator. #​2676

Fixed

• Fix regression of impl FromPyObject for [T; N] no longer accepting types passing PySequence_Check, e.g. NumPy arrays, since version 0.17.0. This the same fix that was applied impl FromPyObject for Vec<T> in version 0.17.1 extended to fixed-size arrays. #​2675
• Fix UB in FunctionDescription::extract_arguments_fastcall due to creating slices from a null pointer. #​2687

v0.17.2

Compare Source

Packaging

• Added optional chrono feature to convert chrono types into types in the datetime module. #​2612

Added

• Add support for num-bigint feature on PyPy. #​2626

Fixed

• Correctly implement __richcmp__ for enums, fixing __ne__ returning always returning True. #​2622
• Fix compile error since 0.17.0 with Option<&SomePyClass> argument with a default. #​2630
• Fix regression of impl FromPyObject for Vec<T> no longer accepting types passing PySequence_Check, e.g. NumPy arrays, since 0.17.0. #​2631

v0.17.1

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Fixed

• Fix visibility of PyDictItems, PyDictKeys, and PyDictValues types added in PyO3 0.17.0.
• Fix compile failure when using #[pyo3(from_py_with = "...")] attribute on an argument of type Option<T>. #​2592
• Fix clippy redundant-closure lint on **kwargs arguments for #[pyfunction] and #[pymethods]. #​2595

v0.17.0

Compare Source

Packaging

• Update inventory dependency to 0.3 (the multiple-pymethods feature now requires Rust 1.62 for correctness). #​2492

Added

• Add timezone_utc. #​1588
• Implement ToPyObject for [T; N]. #​2313
• Add PyDictKeys, PyDictValues and PyDictItems Rust types. #​2358
• Add append_to_inittab. #​2377
• Add FFI definition PyFrame_GetCode. #​2406
• Add PyCode and PyFrame high level objects. #​2408
• Add FFI definitions Py_fstring_input, sendfunc, and _PyErr_StackItem. #​2423
• Add PyDateTime::new_with_fold, PyTime::new_with_fold, PyTime::get_fold, and PyDateTime::get_fold for PyPy. #​2428
• Add #[pyclass(frozen)]. #​2448
• Accept #[pyo3(name)] on enum variants. #​2457
• Add CompareOp::matches to implement __richcmp__ as the result of a Rust std::cmp::Ordering comparison. #​2460
• Add PySuper type. #​2486
• Support PyPy on Windows with the generate-import-lib feature. #​2506
• Add FFI definitions Py_EnterRecursiveCall and Py_LeaveRecursiveCall. #​2511
• Add PyDict::get_item_with_error. #​2536
• Add #[pyclass(sequence)] option. #​2567

Changed

• Change datetime constructors taking a tzinfo to take Option<&PyTzInfo> instead of Option<&PyObject>: PyDateTime::new, PyDateTime::new_with_fold, PyTime::new, and PyTime::new_with_fold. #​1588
• Move PyTypeObject::type_object method to the PyTypeInfo trait, and deprecate the PyTypeObject trait. #​2287
• Methods of Py and PyAny now accept impl IntoPy<Py<PyString>> rather than just &str to allow use of the intern! macro. #​2312
• Change the deprecated pyproto feature to be opt-in instead of opt-out. #​2322
• Emit better error messages when #[pyfunction] return types do not implement IntoPy. #​2326
• Require T: IntoPy for impl<T, const N: usize> IntoPy<PyObject> for [T; N] instead of T: ToPyObject. #​2326
• Deprecate the ToBorrowedObject trait. #​2333
• Iterators over PySet and PyDict will now panic if the underlying collection is mutated during the iteration. #​2380
• Iterators over PySet and PyDict will now panic if the underlying collection is mutated during the iteration. #​2380
• Allow #[classattr] methods to be fallible. #​2385
• Prevent multiple #[pymethods] with the same name for a single #[pyclass]. #​2399
• Fixup lib_name when using PYO3_CONFIG_FILE. #​2404
• Add a message to the ValueError raised by the #[derive(FromPyObject)] implementation for a tuple struct. #​2414
• Allow #[classattr] methods to take Python argument. #​2456
• Rework PyCapsule type to resolve soundness issues: #​2485
  • PyCapsule::new and PyCapsule::new_with_destructor now take name: Option<CString> instead of &CStr.
  • The destructor F in PyCapsule::new_with_destructor must now be Send.
  • PyCapsule::get_context deprecated in favor of PyCapsule::context which doesn't take a py: Python<'_> argument.
  • PyCapsule::set_context no longer takes a py: Python<'_> argument.
  • PyCapsule::name now returns PyResult<Option<&CStr>> instead of &CStr.
• FromPyObject::extract for Vec<T> no longer accepts Python str inputs. #​2500
• Ensure each #[pymodule] is only initialized once. #​2523
• pyo3_build_config::add_extension_module_link_args now also emits linker arguments for wasm32-unknown-emscripten. #​2538
• Type checks for PySequence and PyMapping now require inputs to inherit from (or register with) collections.abc.Sequence and collections.abc.Mapping respectively. #​2477
• Disable PyFunction on when building for abi3 or PyPy. #​2542
• Deprecate Python::acquire_gil. #​2549

Removed

• Remove all functionality deprecated in PyO3 0.15. #​2283
• Make the Dict, WeakRef and BaseNativeType members of the PyClass private implementation details. #​2572

Fixed

• Enable incorrectly disabled FFI definition PyThreadState_DeleteCurrent. #​2357
• Fix wrap_pymodule interactions with name resolution rules: it no longer "sees through" glob imports of use submodule::* when submodule::submodule is a #[pymodule]. #​2363
• Correct FFI definition PyEval_EvalCodeEx to take *const *mut PyObject array arguments instead of *mut *mut PyObject. #​2368
• Fix "raw-ident" structs (e.g. #[pyclass] struct r#RawName) incorrectly having r# at the start of the class name created in Python. #​2395
• Correct FFI definition Py_tracefunc to be unsafe extern "C" fn (was previously safe). #​2407
• Fix compile failure with #[pyo3(from_py_with = "...")] annotations on a field in a #[derive(FromPyObject)] struct. #​2414
• Fix FFI definitions _PyDateTime_BaseTime and _PyDateTime_BaseDateTime lacking leading underscores in their names. #​2421
• Remove FFI definition PyArena on Python 3.10 and up. #​2421
• Fix FFI definition PyCompilerFlags missing member cf_feature_version on Python 3.8 and up. #​2423
• Fix FFI definition PyAsyncMethods missing member am_send on Python 3.10 and up. #​2423
• Fix FFI definition PyGenObject having multiple incorrect members on various Python versions. #​2423
• Fix FFI definition PySyntaxErrorObject missing members end_lineno and end_offset on Python 3.10 and up. #​2423
• Fix FFI definition PyHeapTypeObject missing member ht_module on Python 3.9 and up. #​2423
• Fix FFI definition PyFrameObject having multiple incorrect members on various Python versions. #​2424 #​2434
• Fix FFI definition PyTypeObject missing deprecated field tp_print on Python 3.8. #​2428
• Fix FFI definitions PyDateTime_CAPI. PyDateTime_Date, PyASCIIObject, PyBaseExceptionObject, PyListObject, and PyTypeObject on PyPy. #​2428
• Fix FFI definition _inittab field initfunc typo'd as initfun. #​2431
• Fix FFI definitions _PyDateTime_BaseTime and _PyDateTime_BaseDateTime incorrectly having fold member. #​2432
• Fix FFI definitions PyTypeObject. PyHeapTypeObject, and PyCFunctionObject having incorrect members on PyPy 3.9. #​2433
• Fix FFI definition PyGetSetDef to have *const c_char for doc member (not *mut c_char). #​2439
• Fix #[pyo3(from_py_with = "...")] being ignored for 1-element tuple structs and transparent structs. #​2440
• Use memoffset to avoid UB when computing PyCell layout. #​2450
• Fix incorrect enum names being returned by the generated repr for enums renamed by #[pyclass(name = "...")] #​2457
• Fix PyObject_CallNoArgs incorrectly being available when building for abi3 on Python 3.9. #​2476
• Fix several clippy warnings generated by #[pyfunction] arguments. #​2503

v0.16.6

Compare Source

Changed

• Fix soundness issues with PyCapsule type with select workarounds. Users are encourage to upgrade to PyO3 0.17 at their earliest convenience which contains API breakages which fix the issues in a long-term fashion. #​2522
  • PyCapsule::new and PyCapsule::new_with_destructor now take ownership of a copy of the name to resolve a possible use-after-free.
  • PyCapsule::name now returns an empty CStr instead of dereferencing a null pointer if the capsule has no name.
  • The destructor F in PyCapsule::new_with_destructor will never be called if the capsule is deleted from a thread other than the one which the capsule was created in (a warning will be emitted).
• Panics during drop of panic payload caught by PyO3 will now abort. #​2544

v0.16.5

Compare Source

Added

• Add an experimental generate-import-lib feature to support auto-generating non-abi3 python import libraries for Windows targets. #​2364
• Add FFI definition Py_ExitStatusException. #​2374

Changed

• Deprecate experimental generate-abi3-import-lib feature in favor of the new generate-import-lib feature. #​2364

Fixed

• Added missing warn_default_encoding field to PyConfig on 3.10+. The previously missing field could result in incorrect behavior or crashes. #​2370
• Fixed order of pathconfig_warnings and program_name fields of PyConfig on 3.10+. Previously, the order of the fields was swapped and this could lead to incorrect behavior or crashes. #​2370

v0.16.4

Compare Source

Added

• Add PyTzInfoAccess trait for safe access to time zone information. #​2263
• Add an experimental generate-abi3-import-lib feature to auto-generate python3.dll import libraries for Windows. #​2282
• Add FFI definitions for PyDateTime_BaseTime and PyDateTime_BaseDateTime. #​2294

Changed

• Improved performance of failing calls to FromPyObject::extract which is common when functions accept multiple distinct types. #​2279
• Default to "m" ABI tag when choosing libpython link name for CPython 3.7 on Unix. #​2288
• Allow to compile "abi3" extensions without a working build host Python interpreter. #​2293

Fixed

• Crates depending on PyO3 can collect code coverage via LLVM instrumentation using stable Rust. #​2286
• Fix segfault when calling FFI methods PyDateTime_DATE_GET_TZINFO or PyDateTime_TIME_GET_TZINFO on datetime or time without a tzinfo. #​2289
• Fix directory names starting with the letter n breaking serialization of the interpreter configuration on Windows since PyO3 0.16.3. #​2299

v0.16.3

Compare Source

Packaging

• Extend parking_lot dependency supported versions to include 0.12. #​2239

Added

• Add methods to pyo3_build_config::InterpreterConfig to run Python scripts using the configured executable. #​2092
• Add as_bytes method to Py<PyBytes>. #​2235
• Add FFI definitions for PyType_FromModuleAndSpec, PyType_GetModule, PyType_GetModuleState and PyModule_AddType. #​2250
• Add pyo3_build_config::cross_compiling_from_to as a helper to detect when PyO3 is cross-compiling. #​2253
• Add #[pyclass(mapping)] option to leave sequence slots empty in container implementations. #​2265
• Add PyString::intern to enable usage of the Python's built-in string interning. #​2268
• Add intern! macro which can be used to amortize the cost of creating Python strings by storing them inside a GILOnceCell. #​2269
• Add PYO3_CROSS_PYTHON_IMPLEMENTATION environment variable for selecting the default cross Python implementation. #​2272

Changed

• Allow #[pyo3(crate = "...", text_signature = "...")] options to be used directly in #[pyclass(crate = "...", text_signature = "...")]. #​2234
• Make PYO3_CROSS_LIB_DIR environment variable optional when cross compiling. #​2241
• Mark METH_FASTCALL calling convention as limited API on Python 3.10. #​2250
• Deprecate pyo3_build_config::cross_compiling in favor of pyo3_build_config::cross_compiling_from_to. #​2253

Fixed

• Fix abi3-py310 feature: use Python 3.10 ABI when available instead of silently falling back to the 3.9 ABI. #​2242
• Use shared linking mode when cross compiling against a Framework bundle for macOS. #​2233
• Fix panic during compilation when PYO3_CROSS_LIB_DIR is set for some host/target combinations. #​2232
• Correct dependency version for syn to require minimal patch version 1.0.56. #​2240

v0.16.2

Compare Source

Packaging

• Warn when modules are imported on PyPy 3.7 versions older than PyPy 7.3.8, as they are known to have binary compatibility issues. #​2217
• Ensure build script of pyo3-ffi runs before that of pyo3 to fix cross compilation. #​2224

v0.16.1

Compare Source

Packaging

• Extend hashbrown optional dependency supported versions to include 0.12. #​2197

Fixed

• Fix incorrect platform detection for Windows in pyo3-build-config. #​2198
• Fix regression from 0.16 preventing cross compiling to aarch64 macOS. #​2201

v0.16.0

Compare Source

Packaging

• Update MSRV to Rust 1.48. #​2004
• Update indoc optional dependency to 1.0. #​2004
• Drop support for Python 3.6, remove abi3-py36 feature. #​2006
• pyo3-build-config no longer enables the resolve-config feature by default. #​2008
• Update inventory optional dependency to 0.2. #​2019
• Drop paste dependency. #​2081
• The bindings found in pyo3::ffi are now a re-export of a separate pyo3-ffi crate. #​2126
• Support PyPy 3.9. #​2143

Added

• Add PyCapsule type exposing the Capsule API. #​1980
• Add pyo3_build_config::Sysconfigdata and supporting APIs. #​1996
• Add Py::setattr method. #​2009
• Add #[pyo3(crate = "some::path")] option to all attribute macros (except the deprecated #[pyproto]). #​2022
• Enable create_exception! macro to take an optional docstring. #​2027
• Enable #[pyclass] for fieldless (aka C-like) enums. #​2034
• Add buffer magic methods __getbuffer__ and __releasebuffer__ to #[pymethods]. #​2067
• Add support for paths in wrap_pyfunction and wrap_pymodule. #​2081
• Enable wrap_pyfunction! to wrap a #[pyfunction] implemented in a different Rust module or crate. #​2091
• Add PyAny::contains method (in operator for PyAny). #​2115
• Add PyMapping::contains method (in operator for PyMapping). #​2133
• Add garbage collection magic magic methods __traverse__ and __clear__ to #[pymethods]. #​2159
• Add support for from_py_with on struct tuples and enums to override the default from-Python conversion. #​2181
• Add eq, ne, lt, le, gt, ge methods to PyAny that wrap rich_compare. #​2175
• Add Py::is and PyAny::is methods to check for object identity. #​2183
• Add support for the __getattribute__ magic method. #​2187

Changed

• PyType::is_subclass, PyErr::is_instance and PyAny::is_instance now operate run-time type object instead of a type known at compile-time. The old behavior is still available as PyType::is_subclass_of, PyErr::is_instance_of and PyAny::is_instance_of. #​1985
• Rename some methods on PyErr (the old names are just marked deprecated for now): #​2026
  • pytype -> get_type
  • pvalue -> value (and deprecate equivalent instance)
  • ptraceback -> traceback
  • from_instance -> from_value
  • into_instance -> into_value
• PyErr::new_type now takes an optional docstring and now returns PyResult<Py<PyType>> rather than a ffi::PyTypeObject pointer. #​2027
• Deprecate PyType::is_instance; it is inconsistent with other is_instance methods in PyO3. Instead of typ.is_instance(obj), use obj.is_instance(typ). #​2031
• __getitem__, __setitem__ and __delitem__ in #[pymethods] now implement both a Python mapping and sequence by default. #​2065
• Improve performance and error messages for #[derive(FromPyObject)] for enums. #​2068
• Reduce generated LLVM code size (to improve compile times) for:
  • internal handle_panic helper #​2074 #​2158
  • #[pyfunction] and #[pymethods] argument extraction #​2075 #​2085
  • #[pyclass] type object creation #​2076 #​2081 #​2157
• Respect Rust privacy rules for items wrapped with wrap_pyfunction and wrap_pymodule. #​2081
• Add modulo argument to __ipow__ magic method. #​2083
• Fix FFI definition for _PyCFunctionFast. #​2126
• PyDateTimeAPI and PyDateTime_TimeZone_UTC are are now unsafe functions instead of statics. #​2126
• PyDateTimeAPI does not implicitly call PyDateTime_IMPORT anymore to reflect the original Python API more closely. Before the first call to PyDateTime_IMPORT a null pointer is returned. Therefore before calling any of the following FFI functions PyDateTime_IMPORT must be called to avoid undefined behavior: #​2126
  • PyDateTime_TimeZone_UTC
  • PyDate_Check
  • PyDate_CheckExact
  • PyDateTime_Check
  • PyDateTime_CheckExact
  • PyTime_Check
  • PyTime_CheckExact
  • PyDelta_Check
  • PyDelta_CheckExact
  • PyTZInfo_Check
  • PyTZInfo_CheckExact
  • PyDateTime_FromTimestamp
  • PyDate_FromTimestamp
• Deprecate the gc option for pyclass (e.g. #[pyclass(gc)]). Just implement a __traverse__ #[pymethod]. #​2159
• The ml_meth field of PyMethodDef is now represented by the PyMethodDefPointer union. 2166
• Deprecate the #[pyproto] traits. #​2173

Removed

• Remove all functionality deprecated in PyO3 0.14. #​2007
• Remove Default impl for PyMethodDef. #​2166
• Remove PartialEq impl for Py and PyAny (use the new is instead). #​2183

Fixed

• Fix undefined symbol for PyObject_HasAttr on PyPy. #​2025
• Fix memory leak in PyErr::into_value. #​2026
• Fix clippy warning needless-option-as-deref in code generated by #[pyfunction] and #[pymethods]. #​2040
• Fix undefined behavior in PySlice::indices. #​2061
• Fix the wrap_pymodule! macro using the wrong name for a #[pymodule] with a #[pyo3(name = "..")] attribute. #​2081
• Fix magic methods in #[pymethods] accepting implementations with the wrong number of arguments. #​2083
• Fix panic in #[pyfunction] generated code when a required argument following an Option was not provided. #​2093
• Fixed undefined behavior caused by incorrect ExactSizeIterator implementations. #​2124
• Fix missing FFI definition PyCMethod_New on Python 3.9 and up. #​2143
• Add missing FFI definitions _PyLong_NumBits and _PyLong_AsByteArray on PyPy. #​2146
• Fix memory leak in implementation of AsPyPointer for Option<T>. #​2160
• Fix FFI definition of _PyLong_NumBits to return size_t instead of c_int. #​2161
• Fix TypeError thrown when argument parsing failed missing the originating causes. 2177

v0.15.2

Compare Source

Packaging

• Backport of PyPy 3.9 support from PyO3 0.16. #​2262

v0.15.1

Compare Source

Added

• Add implementations for Py::as_ref and Py::into_ref for `P

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