NOTE Please take care that PyO3 <= 0.8.0 doesn't support the latest nightly (See #614 for detail).

Added

• Conversion between num-bigint and Python int. #608

Fixed

• Make sure the right Python interpreter is used in OSX builds. #604
• Patch specialization being broken by Rust 1.40. #614
• Fix a segfault around PyErr. #597

Added

• module argument to pyclass macro. #499
• py_run! macro #512
• Use existing fields and methods before calling custom getattr. #505
• PyBytes can now be indexed just like Vec<u8>
• Implement IntoPy<PyObject> for PyRef and PyRefMut.

Removed

• IntoPyObject was replaced with IntoPy<PyObject>
• #[pyclass(subclass)] is hidden a unsound-subclass feature because it's causing segmentation faults.

Fixed

• More readable error message for generics in pyclass #503

Changed

• Implementing the Using the gc parameter for pyclass (e.g. #[pyclass(gc)]) without implementing the class::PyGCProtocol trait is now a compile-time error. Failing to implement this trait could lead to segfaults. #532
• PyByteArray::data has been replaced with PyDataArray::to_vec because returning a &[u8] is unsound. (See this comment for a great write-up for why that was unsound)
• Replace mashup with paste.
• GILPool gained a Python marker to prevent it from being misused to release Python objects without the GIL held.

Added

• PyPy support by omerbenamram in #393
• Have PyModule generate an index of its members (__all__ list).
• Allow slf: PyRef<T> for pyclass(#419)
• Allow to use lifetime specifiers in pymethods
• Add marshal module. #460

Changed

• Python::run returns PyResult<()> instead of PyResult<&PyAny>.
• Methods decorated with #[getter] and #[setter] can now omit wrapping the
  result type in PyResult if they don't raise exceptions.

Fixed

• type_object::PyTypeObject has been marked unsafe because breaking the contract type_object::PyTypeObject::init_type can lead to UB.
• Fixed automatic derive of PySequenceProtocol implementation in #423.
• Capitalization & better wording to README.md.
• Docstrings of properties is now properly set using the doc of the #[getter] method.
• Fixed issues with pymethods crashing on doc comments containing double quotes.
• PySet::new and PyFrozenSet::new now return PyResult<&Py[Frozen]Set>; exceptions are raised if
  the items are not hashable.
• Fixed building using venv on Windows.
• PyTuple::new now returns &PyTuple instead of Py<PyTuple>.

Regressions

• Currently, #341 causes cargo test to fail with weird linking errors when the extension-module feature is activated. For now you can work around this by making the extension-module feature optional and running the tests with cargo test --no-default-features:

[dependencies.pyo3]
version = "0.6.0"

[features]
extension-module = ["pyo3/extension-module"]
default = ["extension-module"]

Added

• Added a wrap_pymodule! macro similar to the existing wrap_pyfunction! macro. Only available on python 3
• Added support for cross compiling (e.g. to arm v7) by mtp401 in #327. See the "Cross Compiling" section in the "Building and Distribution" chapter of the guide for more details.
• The PyRef and PyRefMut types, which allow to differentiate between an instance of a rust struct on the rust heap and an instance that is embedded inside a python object. By kngwyu in #335
• Added FromPy<T> and IntoPy<T> which are equivalent to From<T> and Into<T> except that they require a gil token.
• Added ManagedPyRef, which should eventually replace ToBorrowedObject.

Changed

• Renamed PyObjectRef to PyAny in #388
• Renamed add_function to add_wrapped as it now also supports modules.
• Renamed #[pymodinit] to #[pymodule]
• py.init(|| value) becomes Py::new(value)
• py.init_ref(|| value) becomes PyRef::new(value)
• py.init_mut(|| value) becomes PyRefMut::new(value).
• PyRawObject::init is now infallible, e.g. it returns () instead of PyResult<()>.
• Renamed py_exception! to create_exception! and refactored the error macros.
• Renamed wrap_function! to wrap_pyfunction!
• Renamed #[prop(get, set)] to #[pyo3(get, set)]
• #[pyfunction] now supports the same arguments as #[pyfn()]
• Some macros now emit proper spanned errors instead of panics.
• Migrated to the 2018 edition
• crate::types::exceptions moved to crate::exceptions
• Replace IntoPyTuple with IntoPy<Py<PyTuple>>.
• IntoPyPointer and ToPyPointer moved into the crate root.
• class::CompareOp moved into class::basic::CompareOp
• PyTypeObject is now a direct subtrait PyTypeCreate, removing the old cyclical implementation in #350
• Add PyList::{sort, reverse} by chr1sj0nes in #357 and #358
• Renamed the typeob module to type_object

Removed

• PyToken was removed due to unsoundness (See #94).
• Removed the unnecessary type parameter from PyObjectAlloc
• NoArgs. Just use an empty tuple
• PyObjectWithGIL. PyNativeType is sufficient now that PyToken is removed.

Fixed

• A soudness hole where every instances of a #[pyclass] struct was considered to be part of a python object, even though you can create instances that are not part of the python heap. This was fixed through PyRef and PyRefMut.
• Fix kwargs support in #328.
• Add full support for __dict__ in #403.

Fixed

• Fix memory leak in ArrayList by kngwyu #316

Fixed

• Fix undeterministic segfaults when creating many objects by kngwyu in #281

Added

• #[pyclass] objects can now be returned from rust functions
• PyComplex by kngwyu in #226
• PyDict::from_sequence(), equivalent to dict([(key, val), ...])
• Bindings for the datetime standard library types: PyDate, PyTime, PyDateTime, PyTzInfo, PyDelta with associated ffi types, by pganssle #200.
• PyString, PyUnicode, and PyBytes now have an as_bytes() method that returns &[u8].
• PyObjectProtocol::get_type_ptr() by ijl in #242

Removed

• Removed most entries from the prelude. The new prelude is small and clear.
• Slowly removing specialization uses
• PyString, PyUnicode, and PyBytes no longer have a data() method
  (replaced by as_bytes()) and PyStringData has been removed.

Changed

• Removes the types from the root module and the prelude. They now live in pyo3::types instead.
• All exceptions are consturcted with py_err instead of new, as they return PyErr and not Self.
• as_mut and friends take and &mut self instead of &self
• ObjectProtocol::call now takes an Option<&PyDict> for the kwargs instead of an IntoPyDictPointer.
• IntoPyDictPointer was replace by IntoPyDict which doesn't convert PyDict itself anymore and returns a PyDict instead of *mut PyObject.
• PyTuple::new now takes an IntoIterator instead of a slice
• Updated to syn 0.15
• Splitted PyTypeObject into PyTypeObject without the create method and PyTypeCreate with requires PyObjectAlloc<Self> + PyTypeInfo + Sized.
• Ran cargo edition --fix which prefixed path with crate:: for rust 2018
• Renamed async to pyasync as async will be a keyword in the 2018 edition.
• Starting to use NonNull<*mut PyObject> for Py and PyObject by ijl #260

Fixed

• Added an explanation that the GIL can temporarily be released even while holding a GILGuard.
• Lots of clippy errors
• Fix segfault on calling an unknown method on a PyObject
• Work around a bug in the rust compiler by kngwyu #252
• Fixed a segfault with subclassing pyo3 create classes and using __class__ by kngwyu #263

Removed

• The pyobject_extract macro

Removed

• Conversions from tuples to PyDict due to rust-lang/rust#52050

Changed

• Merged both examples into one
• Rustfmt all the things ✔️
• Switched to Keep a Changelog

Changes

• Replaced concat_idents with mashup

Changes

• Fixed scoping bug in pyobject_native_type that would break rust-numpy

0.2.7 backports the compilation fix with current nightlies, so pyo3 stays usable until 0.3 is released.

Changes

• Fix compatibility with TryFrom trait

Changes

• CPython 3.7 support

• Embedded CPython 3.7b1 crashes on initialization #110

• Generated extension functions are weakly typed #108

• call_method*() crashes when the method does not exist #113

• Allow importing exceptions from nested modules #116

Changes

• Allow to get mutable ref from PyObject #106

• Drop RefFromPyObject trait

• Add Python::register_any() method

• Fix impl FromPyObject for Py<T>

• Mark method that work with raw pointers as unsafe #95