Update pyo3 requirement from 0.15.1 to 0.18.1

[dependabot]

Updates the requirements on pyo3 to permit the latest version.

Release notes

Sourced from pyo3's releases.

PyO3 0.18.1

This release fixes several bugs identified since PyO3 0.18.0, including a segfault and a Windows-specific issue with the PyIterator type, which would incorrectly accept any Python class regardless of whether it defined __next__ or not.

Some new APIs have been added such as PyErr::write_unraisable(), PyAny::is_ellipsis() and PyDict::update.

Thank you to the following users for the improvements:

@​adamreichold @​alexpyattaev @​davidhewitt @​jjerphan @​jmhodges @​mejrs @​messense @​mitsuhiko @​neachdainn @​qbx2 @​samuelcolvin

Changelog

Sourced from pyo3's changelog.

[0.18.1] - 2023-02-07

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

[0.18.0] - 2023-01-17

Packaging

• Relax indexmap optional depecency to allow >= 1.6, < 2. [#2849](PyO3/pyo3#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

... (truncated)

Commits

• 37d377e release: 0.18.1
• 9e5c845 Merge #2934
• 2db351b Merge #2937
• d67a8dc link against pythonXY_d.dll for debug Python on Windows
• 1e4dc54 Merge #2936
• bc1a33f bump maturin version in getting_started.md
• 4d80475 Merge #2929
• 9306d56 docs: Precise the abscense of py: Python for the #[pyo3(signature)]
• c709f30 guide: add documentation for trailing option arguments
• 806eed5 Merge #2914
• Additional commits viewable in compare view

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[dependabot]

Superseded by #53.