Releases | Open Source Science

pybind11 - Version 3.0.1

Bug fixes:

Fixed compilation error in type_caster_enum_type when casting pointer-to-enum types. Added pointer overload to handle dereferencing before enum conversion. #5776
Implement binary version of make_index_sequence to reduce template depth requirements for functions with many parameters. #5751
Subinterpreter-specific exception handling code was removed to resolve segfaults. #5795
Fixed issue that caused PYBIND11_MODULE code to run again if the module was re-imported after being deleted from sys.modules. #5782
Prevent concurrent creation of sub-interpreters as a workaround for stdlib concurrency issues in Python 3.12. #5779
Fixed potential crash when using cpp_function objects with sub-interpreters. #5771
Fixed non-entrant check in implicitly_convertible(). #5777
Support C++20 on platforms that have older c++ runtimes. #5761
Fix compilation with clang on msys2. #5757
Avoid nullptr dereference warning with GCC 13.3.0 and python 3.11.13. #5756
Fix potential warning about number of threads being too large. #5807

Fix gcc 11.4+ warning about serial compilation using CMake. #5791

Documentation:

Improve buffer_info type checking in numpy docs. #5805
Replace robotpy-build with semiwrap in the binding tool list. #5804
Show nogil in most examples. #5770
Fix py::trampoline_self_life_support visibility in docs. #5766

Tests:

Avoid a spurious warning about DOWNLOAD_CATCH being manually specified. #5803
Fix an IsolatedConfig test. #5768

CI:

Add CI testing for Android. #5714

Internal:

Rename internal variables to avoid the word slots (reads better). #5793

- C++
Published by henryiii 9 months ago

pybind11 - Version 3.0.0 (final)

Pybind11 3.0 includes an ABI bump, the first required bump in many years on Unix (Windows has had required bumps more often). This release contains the smart-holder branch, multi-phase init and subinterpreter support, py::native_enum, an interface to warnings, typing improvements, and more. CMake now defaults to FindPython mode. Please check our upgrade guide for more info on upgrading!

Support for Python 3.14, 3.14t, GraalPy, and PyPy 3.11 has been added, while legacy support for Python 3.7, PyPy 3.8/3.9, and CMake <3.15 has been removed. Most deprecated features have been kept for this release, but anything producing a warning in 3.0 may be removed in a future 3.x version. We also now have a deprecation page.

New Features:

The smart_holder branch has been merged, enabling py::class_<T, py::smart_holder>, which handles two-way conversion with std::unique_ptr<T> and std::shared_ptr<T> (simultaneously), disowning a Python object being passed to std::unique_ptr<T>, trampoline objects, and std::enable_shared_from_this. #5542
- Added support for std::shared_ptr<const T> in py::init() when using py::smart_holder, complementing existing support for std::unique_ptr<const T>. #5731
- Support const-only smart pointers. #5718
- Eliminate cross-DSO RTTI reliance from trampoline_self_life_support functionality, smart_holder deleter detection, and other smart_holder bookkeeping. Resolves platform-specific issues on macOS related to cross-DSO dynamic_cast and typeid mismatches. #5728 (replaces #5700)
Changed PYBIND11_MODULE macro implementation to perform multi-phase module initialization (PEP 489) behind the scenes. #5574 and avoid destruction #5688
Support for sub-interpreters (both isolated (with separate GILs) and legacy (with a global GIL). Add the py::multiple_interpreters::per_interpreter_gil() tag (or, py::multiple_interpreters::shared_gil() for legacy interpreter support) to PYBIND11_MODULE calls (as the third parameter) to indicate that a module supports running with sub-interpreters. #5564
- Rename macro PYBIND11_SUBINTERPRETER_SUPPORT -> PYBIND11_HAS_SUBINTERPRETER_SUPPORT to meet naming convention. #5682
- Allow subinterpreter support to be disabled if defined to 0. This is mostly an emergency workaround, and is not exposed in CMake. #5708 and #5710
- Modify internals pointer-to-pointer implementation to not use thread_local (better iOS support). #5709
- Support implementations without subinterpreter support. #5732
Changed PYBIND11_EMBEDDED_MODULE macro implementation to perform multi-phase module initialization (PEP 489) behind the scenes and to support py::mod_gil_not_used(), py::multiple_interpreters::per_interpreter_gil() and py::multiple_interpreters::shared_gil(). #5665 and consolidate code #5670
Added API in pybind11/subinterpreter.h for embedding sub-intepreters (requires Python 3.12+). #5666
py::native_enum was added, for conversions between Python's native (stdlib) enum types and C++ enums. #5555
- Add class doc string to py::native_enum. #5617
- Fix signature for functions with a native_enum in the signature. #5619
Support py::numpy_scalar<> / py::make_scalar() for NumPy types. #5726
A py::release_gil_before_calling_cpp_dtor option (for py::class_) was added to resolve the long-standing issue #1446. #5522
Add dtype::normalized_num and dtype::num_of. #5429
Add support for array_t<handle> and array_t<object>. #5427
Added py::warnings namespace with py::warnings::warn and py::warnings::new_warning_type that provides the interface for Python warnings. #5291
stl.h list|set|map_caster were made more user friendly: it is no longer necessary to explicitly convert Python iterables to tuple(), set(), or map() in many common situations. #4686
The array_caster in pybind11/stl.h was enhanced to support value types that are not default-constructible. #5305
pybind11/conduit/pybind11_platform_abi_id.h was factored out, to maximize reusability of PYBIND11_PLATFORM_ABI_ID (for other Python/C++ binding systems). Separately, a note was added to explain that the conduit feature only covers from-Python-to-C++ conversions. #5375 | #5740
Added support for finding pybind11 using pkgconf distributed on pypi. #5552
Support --extension-suffix on the pybind11 command. #5360
Add semi-public API: pybind11::detail::is_holder_constructed and update example for pybind11::custom_type_setup in documentation. #5669
Added py::scoped_critical_section to support free-threaded mode. #5684 | #5706

New Features / fixes (typing):

Added option for different arg/return type hints to type_caster. Updated stl/filesystem to use correct arg/return type hints. Updated pybind11::typing to use correct arg/return type hints for nested types. #5450
Updated type hint for py::capsule to type.CapsuleType. #5567
Adds support for typing.SupportsInt and typing.SupportsFloat. Update Final to be narrower type hint. Make std::function match Callable type. Fix io_name bug in attr_with_type_hint. #5540
Rework of arg/return type hints to support .noconvert(). #5486
Add attr_with_type for declaring attribute types and Final, ClassVar type annotations. #5460
Allow annotate methods with py::pos_only when only have the self argument. Make arguments for auto-generated dunder methods positional-only. #5403
Added py::Args and py::KWArgs to enable custom type hinting of *args and **kwargs (see PEP 484). #5357
Switched to numpy.typing.NDArray and numpy.typing.ArrayLike. #5212
Use numpy.object_ instead of object. #5571
Fix module type hint. #5469
Fix Buffer type hint. #5662
Added support for collections.abc in type hints and convertible checks of STL casters and py::buffer. #5566
Fix typing and collections.abc type hint ambiguity. #5663
Add typing_extensions alternatives for all types that need them. #5693

Removals:

Remove support for pybind11 v2 internals versions (4, 5, 6). (The internals version number has been bumped for pybind11 v3.) #5512 | #5530
Remove make_simple_namespace (added in 2.8.0, deprecated in 2.8.1). #5597
Legacy-mode option PYBIND11_NUMPY_1_ONLY has been removed. #5595
Add a deprecation warning to .get_type (deprecated in pybind11 2.6 in 2020). #5596

Bug fixes:

Set __file__ on submodules. #5584. Except on embedded modules. #5650
pybind11-bound functions are now pickleable. #5580
Fix bug in attr_with_type_hint to allow objects to be in attr_with_type_hint. #5576
A -Wmaybe-uninitialized warning suppression was added in pybind11/eigen/matrix.h. #5516
PYBIND11_WARNING_POP was incorrectly defined as PYBIND11_PRAGMA(clang diagnostic push). #5448
PYBIND11_PLATFORM_ABI_ID (which is used in composing PYBIND11_INTERNALS_ID) was modernized to reflect actual ABI compatibility more accurately. #4953 | #5439
Fix buffer protocol implementation. #5407
Fix iterator increment operator does not skip first item. #5400
When getting or deleting an element in a container bound by bind_map, print the key in KeyError if it does not exist. #5397
pybind11::builtin_exception is now explicitly exported when linked to libc++. #5390
Allow subclasses of py::args and py::kwargs. #5381
Disable false-positive GCC 12 Bound Check warning. #5355
Update the dict when restoring pickles, instead of assigning a replacement dict. #5658
Properly define _DEBUG macro to 1 instead of defining it without value. #5639
Fix a missing time cast causing a compile error for newer ICC. #5621
Change the behavior of the default constructor of py::slice to be equivalent to :: in Python. #5620

Bug fixes and features (CMake):

Enable FindPython mode by default, with a COMPAT mode that sets some of the old variables to ease transition. #5553
Add an author warning that auto-calculated PYTHON_MODULE_EXTENSION may not respect SETUPTOOLS_EXT_SUFFIX during cross-compilation. #5495
Don't strip with CMAKE_BUILD_TYPE None. #5392
Fix an issue with NO_EXTRAS adding pybind11::windows_extras anyway. #5378
Fix issue with NEW/OLD message showing up. #5656
Use CMake's warnings as errors if available (CMake 3.24+). #5612
Add support for running pybind11's tests via presets in CMake 3.25+. #5655 and support --fresh. #5668
Experimental CMake support for Android. #5733
Presets now generate compile_commands.json. #5685

Bug fixes (free-threading):

Fix data race in free threaded CPython when accessing a shared static variable. #5494
A free-threading data race in all_type_info() was fixed. #5419
Added exception translator specific mutex used with try_translate_exceptions in the free-threaded build for internal locking. #5362

Internals:

Consolidated all PYBIND11_HAS_... feature macros into pybind11/detail/common.h to streamline backward compatibility checks and simplify internal refactoring. This change ensures consistent macro availability regardless of header inclusion order. #5647
pybind11/gil_simple.h was factored out from pybind11/gil.h, so that it can easily be reused. #5614
Use CPython macros to construct PYBIND11_VERSION_HEX. #5683

Documentation:

Improved reference_internal policy documentation. #5528
A new "Double locking, deadlocking, GIL" document was added. #5394
Add documenting for free-threading and subinterpreters. #5659

Tests:

Download the final Catch2 2.x release if Catch download is requested. #5568
Explicitly used signed char for two numpy dtype tests. As seen when compiling using clang on Linux with the -funsigned-char flag. #5545
CI testing now includes -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls in some jobs. #5523
Add nightly wheels to scientific-python's nightly wheelhouse. #5675
Expect free-threaded warning when loading a non-free-threaded module. #5680
Run pytest under Python devmode. #5715

New and removed platforms:

Support Python 3.14 (beta 1+). #5646
Added support for GraalPy Python implementation (https://github.com/oracle/graalpython). #5380
Support and test iOS in CI. #5705
Support for PyPy 3.11 added. #5508 And test in ci. #5534
Support for PyPy 3.8 and 3.9 was dropped. #5578
Support for Python 3.7 was removed. (Official end-of-life: 2023-06-27). #5191
Support for CMake older than 3.15 removed. CMake 3.15-4.0 supported. #5304 and fix regression #5691.
Use scikit-build-core for the build backend for the PyPI pybind11. The CMake generation has been moved to the sdist->wheel step. PYBIND11_GLOBAL_SDIST has been removed. #5598 and updated docs/ci. #5676
clang 20 tested and used for clang-tidy. #5692
Drop testing on MSVC 2019 (as it is being removed from GitHub). #5712
Support Windows C++20 and Linux C++23 in tests. #5707

Full Changelog: https://github.com/pybind/pybind11/compare/v3.0.0rc4...v3.0.0

- C++
Published by rwgk 11 months ago

pybind11 - Version 3.0.0 RC 4

What's Changed

feat: numpy scalars by @henryiii in https://github.com/pybind/pybind11/pull/5726
fix: TSan warning in sub-interpreter test by @b-pass in https://github.com/pybind/pybind11/pull/5729
fix: add support for shared_ptr<const T> in py::init() with smart_holder by @rwgk in https://github.com/pybind/pybind11/pull/5731
fix: add support for const-only smart pointers by @Rosdf in https://github.com/pybind/pybind11/pull/5718
fix: android CMake support by @henryiii in https://github.com/pybind/pybind11/pull/5733
fix: eliminate cross-DSO RTTI reliance in smart_holder functionality (for platforms like macOS). by @rwgk in https://github.com/pybind/pybind11/pull/5728
fix: handle implementations without subinterpreter support by @msimacek in https://github.com/pybind/pybind11/pull/5732
ci: avoid 3.13.4 on Windows by @henryiii in https://github.com/pybind/pybind11/pull/5725
ci: check latest on 3.13 by @henryiii in https://github.com/pybind/pybind11/pull/5734
ci: cibw update to 3.0.0rc2 by @henryiii in https://github.com/pybind/pybind11/pull/5717
docs: Add documentation entry for warnings by @jiwaszki in https://github.com/pybind/pybind11/pull/5356
tests: better test for const only smart ptr by @Rosdf in https://github.com/pybind/pybind11/pull/5727
tests: run pytest under Python devmode by @XuehaiPan in https://github.com/pybind/pybind11/pull/5715
chore(deps): bump pypa/cibuildwheel from 3.0.0rc2 to 3.0 in the actions group by @dependabot in https://github.com/pybind/pybind11/pull/5721
chore(deps): bump requests from 2.32.3 to 2.32.4 in /docs by @dependabot in https://github.com/pybind/pybind11/pull/5720
chore(deps): bump urllib3 from 2.2.2 to 2.5.0 in /docs by @dependabot in https://github.com/pybind/pybind11/pull/5735
chore: prepare for 3.0.0rc4 by @henryiii in https://github.com/pybind/pybind11/pull/5736

[!IMPORTANT]
This RC has an ABI bump. This is expected to be the last bump (and last RC) unless something comes up.

New Contributors

@Rosdf made their first contribution in https://github.com/pybind/pybind11/pull/5718

Full Changelog: https://github.com/pybind/pybind11/compare/v3.0.0rc3...v3.0.0rc4

- C++
Published by henryiii 12 months ago

pybind11 - Version 3.0.0 RC 3

This is another release candidate. See the changelog in the docs for the combined changelog; this is just the changes since RC 2:

fix(types): type hints from future python versions by @InvincibleRMC in https://github.com/pybind/pybind11/pull/5693
fix: allow subinterpreters to be manually disabled by @henryiii in https://github.com/pybind/pybind11/pull/5708
fix: follow rest of pybind11 closer with PYBIND11_HAS_SUBINTERPRETER_SUPPORT by @henryiii in https://github.com/pybind/pybind11/pull/5710
fix: modify the internals pointer-to-pointer implementation to not use thread_local by @b-pass in https://github.com/pybind/pybind11/pull/5709
fix: expose required symbol using clang by @petersteneteg in https://github.com/pybind/pybind11/pull/5700
fix: handle null py::handle and add tests for py::scoped_critical_section by @XuehaiPan in https://github.com/pybind/pybind11/pull/5706
ci: avoid brownout (and removal) of windows-2019 by @henryiii in https://github.com/pybind/pybind11/pull/5712
ci: ios by @henryiii in https://github.com/pybind/pybind11/pull/5705
ci: reduced runs on draft PRs by @henryiii in https://github.com/pybind/pybind11/pull/5707
docs: prepare for RC 3 by @henryiii in https://github.com/pybind/pybind11/pull/5713

[!WARNING] Note our iOS support requires a cibuildwheel 3.0 beta currently, the cibuildwheel v3.0.0rc1 does not work.

[!IMPORTANT]
This RC has an ABI bump. We might need one more ABI bump before 3.0 final to improve the protection of our internals.

New Contributors

@petersteneteg made their first contribution in https://github.com/pybind/pybind11/pull/5700

Full Changelog: https://github.com/pybind/pybind11/compare/v3.0.0rc2...v3.0.0rc3

- C++
Published by henryiii 12 months ago

pybind11 - Version 3.0.0 RC 2

This is another release candidate. See the changelog in the docs for the combined changelog; this is just the changes since RC 1:

feat: scopedcriticalsection by @henryiii in https://github.com/pybind/pybind11/pull/5684
fix(cmake): regression in include guard by @henryiii in https://github.com/pybind/pybind11/pull/5691
fix: don't destruct module objects in atexit by @b-pass in https://github.com/pybind/pybind11/pull/5688
fix: prepare for 3.14 beta 2 by @henryiii in https://github.com/pybind/pybind11/pull/5697
chore(cmake): add compile commands to preset by @henryiii in https://github.com/pybind/pybind11/pull/5685
chore: bump maximum clang tested to 20 by @henryiii in https://github.com/pybind/pybind11/pull/5692
chore: rename macro PYBIND11_SUBINTERPRETER_SUPPORT -> PYBIND11_HAS_SUBINTERPRETER_SUPPORT to meet naming convention by @XuehaiPan in https://github.com/pybind/pybind11/pull/5682
chore: use CPython macros to construct PYBIND11_VERSION_HEX by @XuehaiPan in https://github.com/pybind/pybind11/pull/5683
docs: more warnings about locking and the GIL by @henryiii in https://github.com/pybind/pybind11/pull/5689
docs: update contributing/release guide a little by @henryiii in https://github.com/pybind/pybind11/pull/5681
tests: always disable on the nogil build by @henryiii in https://github.com/pybind/pybind11/pull/5701
tests: expect free-threaded import warnings by @henryiii in https://github.com/pybind/pybind11/pull/5680
tests: skip some flaky gil tests on nogil by @henryiii in https://github.com/pybind/pybind11/pull/5699

Full Changelog: https://github.com/pybind/pybind11/compare/v3.0.0rc1...v3.0.0rc2

- C++
Published by henryiii about 1 year ago

pybind11 - Version 3.0.0 RC 1

What's Changed

Since this is a large release, we are providing a release candidate to give projects time to test! We also now provide SPEC 4 nightly wheels. We are hoping to split up std.h; that work is approved to be added during the RC phase if it's ready in time. We expect the RC phase to last around a week.

Pybind11 3.0 includes an ABI bump, the first required bump in many years on Unix (Windows has had required bumps more often). This release contains the smart-holder branch, multi-phase init and subinterpreter support, py::native_enum, an interface to warnings, typing improvements, and more. CMake now defaults to FindPython mode. Please check our upgrade guide for more info on upgrading!

Support for Python 3.14, 3.14t, GraalPy, and PyPy 3.11 has been added, while legacy support for Python 3.7, PyPy 3.8/3.9, and CMake <3.15 has been removed. Most deprecated features have been kept for this release, but anything producing a warning in 3.0 may be removed in a future 3.x version. We also now have a deprecation page.

New Features:

The smart_holder branch has been merged, enabling py::class_<T, py::smart_holder>, which handles two-way conversion with std::unique_ptr<T> and std::shared_ptr<T> (simultaneously), disowning a Python object being passed to std::unique_ptr<T>, trampoline objects, and std::enable_shared_from_this. #5542
Changed PYBIND11_MODULE macro implementation to perform multi-phase module initialization (PEP 489) behind the scenes. #5574
Support for sub-interpreters (both isolated (with separate GILs) and legacy (with a global GIL). Add the py::multiple_interpreters::per_interpreter_gil() tag (or, py::multiple_interpreters::shared_gil() for legacy interpreter support) to PYBIND11_MODULE calls (as the third parameter) to indicate that a module supports running with sub-interpreters. #5564
Changed PYBIND11_EMBEDDED_MODULE macro implementation to perform multi-phase module initialization (PEP 489) behind the scenes and to support py::mod_gil_not_used(), py::multiple_interpreters::per_interpreter_gil() and py::multiple_interpreters::shared_gil(). #5665 and consolidate code #5670
Added API in pybind11/subinterpreter.h for embedding sub-intepreters (requires Python 3.12+). #5666
py::native_enum was added, for conversions between Python's native (stdlib) enum types and C++ enums. #5555
- Add class doc string to py::native_enum. #5617.
- Fix signature for functions with a native_enum in the signature. #5619
A py::release_gil_before_calling_cpp_dtor option (for py::class_) was added to resolve the long-standing issue #1446. #5522
Add dtype::normalized_num and dtype::num_of. #5429
Add support for array_t<handle> and array_t<object>. #5427
Added py::warnings namespace with py::warnings::warn and py::warnings::new_warning_type that provides the interface for Python warnings. #5291
stl.h list|set|map_caster were made more user friendly: it is no longer necessary to explicitly convert Python iterables to tuple(), set(), or map() in many common situations. #4686
The array_caster in pybind11/stl.h was enhanced to support value types that are not default-constructible. #5305
pybind11/conduit/pybind11_platform_abi_id.h was factored out, to maximize reusability of PYBIND11_PLATFORM_ABI_ID (for other Python/C++ binding systems). #5375
Added support for finding pybind11 using pkgconf distributed on pypi. #5552
Support --extension-suffix on the pybind11 command. #5360
Add semi-public API: pybind11::detail::is_holder_constructed and update example for pybind11::custom_type_setup in documentation. #5669

New Features / fixes (typing):

Added option for different arg/return type hints to type_caster. Updated stl/filesystem to use correct arg/return type hints. Updated pybind11::typing to use correct arg/return type hints for nested types. #5450
Updated type hint for py::capsule to type.CapsuleType. #5567
Adds support for typing.SupportsInt and typing.SupportsFloat. Update Final to be narrower type hint. Make std::function match Callable type. Fix io_name bug in attr_with_type_hint. #5540
Rework of arg/return type hints to support .noconvert(). #5486
Add attr_with_type for declaring attribute types and Final, ClassVar type annotations. #5460
Allow annotate methods with py::pos_only when only have the self argument. Make arguments for auto-generated dunder methods positional-only. #5403
Added py::Args and py::KWArgs to enable custom type hinting of *args and **kwargs (see PEP 484). #5357
Switched to numpy.typing.NDArray and numpy.typing.ArrayLike. #5212
Use numpy.object_ instead of object. #5571
Fix module type hint. #5469
Fix Buffer type hint. #5662
Added support for collections.abc in type hints and convertible checks of STL casters and py::buffer. #5566
Fix typing and collections.abc type hint ambiguity. #5663

Removals:

Remove support for pybind11 v2 internals versions (4, 5, 6). (The internals version number has been bumped for pybind11 v3.) #5512 | #5530
Remove make_simple_namespace (added in 2.8.0, deprecated in 2.8.1). #5597
Legacy-mode option PYBIND11_NUMPY_1_ONLY has been removed. #5595
Add a deprecation warning to .get_type (deprecated in pybind11 2.6 in 2020). #5596

Bug fixes:

Set __file__ on submodules. #5584. Except on embedded modules. #5650
pybind11-bound functions are now pickleable. #5580
Fix bug in attr_with_type_hint to allow objects to be in attr_with_type_hint. #5576
A -Wmaybe-uninitialized warning suppression was added in pybind11/eigen/matrix.h. #5516
PYBIND11_WARNING_POP was incorrectly defined as PYBIND11_PRAGMA(clang diagnostic push). #5448
PYBIND11_PLATFORM_ABI_ID (which is used in composing PYBIND11_INTERNALS_ID) was modernized to reflect actual ABI compatibility more accurately. #4953 | #5439
Fix buffer protocol implementation. #5407
Fix iterator increment operator does not skip first item. #5400
When getting or deleting an element in a container bound by bind_map, print the key in KeyError if it does not exist. #5397
pybind11::builtin_exception is now explicitly exported when linked to libc++. #5390
Allow subclasses of py::args and py::kwargs. #5381
Disable false-positive GCC 12 Bound Check warning. #5355
fix: using __cpp_nontype_template_args instead of __cpp_nontype_template_parameter_class. #5330
Properly translate C++ exception to Python exception when creating Python buffer from wrapped object. #5324
Update the dict when restoring pickles, instead of assigning a replacement dict. #5658
Properly define _DEBUG macro to 1 instead of defining it without value. #5639
Fix a missing time cast causing a compile error for newer ICC. #5621
Change the behavior of the default constructor of py::slice to be equivalent to :: in Python. #5620

Bug fixes (CMake):

Enable FindPython mode by default, with a COMPAT mode that sets some of the old variables to ease transition. #5553
Add an author warning that auto-calculated PYTHON_MODULE_EXTENSION may not respect SETUPTOOLS_EXT_SUFFIX during cross-compilation. #5495
Don't strip with CMAKE_BUILD_TYPE None. #5392
Fix an issue with NO_EXTRAS adding pybind11::windows_extras anyway. #5378
Fix issue with NEW/OLD message showing up. #5656
Use CMake's warnings as errors if available (CMake 3.24+). #5612
Add support for running pybind11's tests via presets in CMake 3.25+. #5655 and support --fresh. #5668
Restructure venv support to support --fresh, make in build folder. #5668

Bug fixes (free-threading):

Fix data race in free threaded CPython when accessing a shared static variable. #5494
A free-threading data race in all_type_info() was fixed. #5419
Added exception translator specific mutex used with try_translate_exceptions in the free-threaded build for internal locking. #5362

Internals:

Consolidated all PYBIND11_HAS_... feature macros into pybind11/detail/common.h to streamline backward compatibility checks and simplify internal refactoring. This change ensures consistent macro availability regardless of header inclusion order. #5647
pybind11/gil_simple.h was factored out from pybind11/gil.h, so that it can easily be reused. #5614

Documentation:

Improved reference_internal policy documentation. #5528
A new "Double locking, deadlocking, GIL" document was added. #5394
Adds an answer (FAQ) for "What is a highly conclusive and simple way to find memory leaks?". #5340
Add documenting for free-threading and subinterpreters. #5659

Tests:

Download the final Catch2 2.x release if Catch download is requested. #5568
Explicitly used signed char for two numpy dtype tests. As seen when compiling using clang on Linux with the -funsigned-char flag. #5545
Test PyPy3.11 in CI. #5534
CI testing now includes -Wwrite-strings -Wunreachable-code -Wpointer-arith -Wredundant-decls in some jobs. #5523
Add nightly wheels to scientific-python's nightly wheelhouse. #5675

New and removed platforms:

Support Python 3.14 (beta 1). #5646
Added support for GraalPy Python implementation (https://github.com/oracle/graalpython). #5380
Support for PyPy 3.11 added. #5508
Support for PyPy 3.8 and 3.9 was dropped. #5578
Support for Python 3.7 was removed. (Official end-of-life: 2023-06-27). #5191
Support for CMake older than 3.15 removed. CMake 3.15-4.0 supported. #5304
Use scikit-build-core for the build backend for the PyPI pybind11. The CMake generation has been moved to the sdist->wheel step. PYBIND11_GLOBAL_SDIST has been removed. #5598 and updated docs/ci. #5676

New Contributors

@varunagrawal made their first contribution in https://github.com/pybind/pybind11/pull/5207
@wenqing made their first contribution in https://github.com/pybind/pybind11/pull/5208
@rgommers made their first contribution in https://github.com/pybind/pybind11/pull/5250
@teo-tsirpanis made their first contribution in https://github.com/pybind/pybind11/pull/5263
@fred-sch made their first contribution in https://github.com/pybind/pybind11/pull/5284
@pwdcd made their first contribution in https://github.com/pybind/pybind11/pull/5308
@MarkusBauer made their first contribution in https://github.com/pybind/pybind11/pull/4874
@ObeliskGate made their first contribution in https://github.com/pybind/pybind11/pull/5314
@DWesl made their first contribution in https://github.com/pybind/pybind11/pull/5326
@vnlitvinov made their first contribution in https://github.com/pybind/pybind11/pull/5324
@BobbyRBruce made their first contribution in https://github.com/pybind/pybind11/pull/5355
@vfdev-5 made their first contribution in https://github.com/pybind/pybind11/pull/5362
@Hintay made their first contribution in https://github.com/pybind/pybind11/pull/5378
@gentlegiantJGC made their first contribution in https://github.com/pybind/pybind11/pull/5381
@sarlinpe made their first contribution in https://github.com/pybind/pybind11/pull/5397
@francesco-ballarin made their first contribution in https://github.com/pybind/pybind11/pull/5396
@J-M0 made their first contribution in https://github.com/pybind/pybind11/pull/5448
@timohl made their first contribution in https://github.com/pybind/pybind11/pull/5450
@jspricke made their first contribution in https://github.com/pybind/pybind11/pull/5392
@nikulpatel3141 made their first contribution in https://github.com/pybind/pybind11/pull/5360
@mattip made their first contribution in https://github.com/pybind/pybind11/pull/5508
@daizhirui made their first contribution in https://github.com/pybind/pybind11/pull/5516
@pganssle-google made their first contribution in https://github.com/pybind/pybind11/pull/5545
@b-pass made their first contribution in https://github.com/pybind/pybind11/pull/5574
@dyollb made their first contribution in https://github.com/pybind/pybind11/pull/5617
@nsoblath made their first contribution in https://github.com/pybind/pybind11/pull/5624

Full Changelog: https://github.com/pybind/pybind11/compare/v2.13.6...v3.0.0rc1

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Published by henryiii about 1 year ago

pybind11 - Version 2.13.6

New Features:

A new self._pybind11_conduit_v1_() method is automatically added to all py::class_-wrapped types, to enable type-safe interoperability between different independent Python/C++ bindings systems, including pybind11 versions with different PYBIND11_INTERNALS_VERSION's. Supported on pybind11 2.11.2, 2.12.1, and 2.13.6+. #5296

Bug fixes:

Using __cpp_nontype_template_args instead of __cpp_nontype_template_parameter_class. #5330
Properly translate C++ exception to Python exception when creating Python buffer from wrapped object. #5324

Documentation:

Adds an answer (FAQ) for "What is a highly conclusive and simple way to find memory leaks?". #5340

- C++
Published by henryiii over 1 year ago

pybind11 - Version 2.11.2

New Features:

A new self._pybind11_conduit_v1_() method is automatically added to all py::class_-wrapped types, to enable type-safe interoperability between different independent Python/C++ bindings systems, including pybind11 versions with different PYBIND11_INTERNALS_VERSION's. Supported on pybind11 2.11.2, 2.12.1, and 2.13.6+. #5296

- C++
Published by rwgk over 1 year ago

pybind11 - Version 2.12.1

New Features:

A new self._pybind11_conduit_v1_() method is automatically added to all py::class_-wrapped types, to enable type-safe interoperability between different independent Python/C++ bindings systems, including pybind11 versions with different PYBIND11_INTERNALS_VERSION's. Supported on pybind11 2.11.2, 2.12.1, and 2.13.6+. #5296

- C++
Published by rwgk over 1 year ago

pybind11 - Version 2.13.5

Bug fixes:

Fix includes when using Windows long paths (\\?\ prefix). #5321
Support -Wpedantic in C++20 mode. #5322
Fix and test <ranges> support for py::tuple and py::list. #5314

- C++
Published by henryiii almost 2 years ago

pybind11 - Version 2.13.4

Bug fixes:

Fix paths with spaces, including on Windows. (Replaces regression from #5302) #4874

Documentation:

Remove repetitive words. #5308

Full Changelog: https://github.com/pybind/pybind11/compare/v2.13.3...v2.13.4

- C++
Published by henryiii almost 2 years ago

pybind11 - Version 2.13.3

Bug fixes:

Quote paths from pybind11-config #5302
Fix typo in Emscripten support when in config mode (CMake) #5301

Full Changelog: https://github.com/pybind/pybind11/compare/v2.13.2...v2.13.3

- C++
Published by henryiii almost 2 years ago

pybind11 - Version 2.13.2

New Features:

A pybind11::detail::type_caster_std_function_specializations feature was added, to support specializations for std::function's with return types that require custom to-Python conversion behavior (to primary use case is to catch and convert exceptions). #4597

Changes:

Use PyMutex instead of std::mutex for internal locking in the free-threaded build. #5219
Add a special type annotation for C++ empty tuple. #5214
When compiling for WebAssembly, add the required exception flags (CMake 3.13+). #5298

Bug fixes:

Make gil_safe_call_once_and_store thread-safe in free-threaded CPython. #5246
A missing #include <algorithm> in pybind11/typing.h was added to fix build errors (in case user code does not already depend on that include). #5208
Fix regression introduced in #5201 for GCC<10.3 in C++20 mode. #5205
Remove extra = when assigning flto value in the case for Clang in CMake. #5207

Tests:

Adding WASM testing to our CI (Pyodide / Emscripten via scikit-build-core). #4745
clang-tidy (in GitHub Actions) was updated from clang 15 to clang 18. #5272

Full Changelog: https://github.com/pybind/pybind11/compare/v2.13.1...v2.13.2

- C++
Published by henryiii almost 2 years ago

pybind11 - Version 2.13.1

New Features:

Add support for Typing.Callable[..., T]. #5202

Bug fixes:

Avoid aligned allocation in free-threaded build in order to support macOS versions before 10.14. #5200

- C++
Published by henryiii almost 2 years ago

pybind11 - Version 2.13.0

New Features:

Support free-threaded CPython (3.13t). Add py::mod_gil_not_used() tag to indicate if a module supports running with the GIL disabled. #5148
Support for Python 3.6 was removed. (Official end-of-life: 2021-12-23). #5177
py::list gained a .clear() method. #5153
Support for Union, Optional, type[T], typing.TypeGuard, typing.TypeIs, typing.Never, typing.NoReturn and typing.Literal was added to pybind11/typing.h. #5166 #5165 #5194 #5193 #5192
In CMake, if PYBIND11_USE_CROSSCOMPILING is enabled, then CMAKE_CROSSCOMPILING will be respected and will keep pybind11 from accessing the interpreter during configuration. Several CMake variables will be required in this case, but can be deduced from the environment variable SETUPTOOLS_EXT_SUFFIX. The default (currently OFF) may be changed in the future. #5083

Bug fixes:

A refcount bug (leading to heap-use-after-free) involving trampoline functions with PyObject * return type was fixed. #5156
Return py::ssize_t from .ref_count() instead of int. #5139
A subtle bug involving C++ types with unusual operator& overrides was fixed. #5189
Support Python 3.13 with minor fix, add to CI. #5127
Fix mistake affecting old cmake and old boost. #5149

Documentation:

Build docs updated to feature scikit-build-core and meson-python, and updated setuptools instructions. #5168

Tests:

Avoid immortal objects in tests. #5150

CI:

Compile against Python 3.13t in CI.
Use macos-13 (Intel) for CI jobs for now (will drop Python 3.7 soon). #5109
Releases now have artifact attestations, visible at https://github.com/pybind/pybind11/attestations. #5196

Other:

Some cleanup in preparation for 3.13 support. #5137
Avoid a warning by ensuring an iterator end check is included in release mode. #5129
Bump max cmake to 3.29. #5075
Update docs and noxfile. #5071

- C++
Published by henryiii almost 2 years ago

pybind11 - Version 2.12.0

New Features:

pybind11 now supports compiling for NumPy 2. Most code shouldn't change (see upgrade-guide-2.12 for details). However, if you experience issues you can define PYBIND11_NUMPY_1_ONLY to disable the new support for now, but this will be removed in the future. #5050
pybind11/gil_safe_call_once.h was added (it needs to be included explicitly). The primary use case is GIL-safe initialization of C++ static variables. #4877
Support move-only iterators in py::make_iterator, py::make_key_iterator, py::make_value_iterator. #4834
Two simple py::set_error() functions were added and the documentation was updated accordingly. In particular, py::exception<>::operator() was deprecated (use one of the new functions instead). The documentation for py::exception<> was further updated to not suggest code that may result in undefined behavior. #4772

Bug fixes:

Removes potential for Undefined Behavior during process teardown. #4897
Improve compatibility with the nvcc compiler (especially CUDA 12.1/12.2). #4893
pybind11/numpy.h now imports NumPy's multiarray and _internal submodules with paths depending on the installed version of NumPy (for compatibility with NumPy 2). #4857
Builtins collections names in docstrings are now consistently rendered in lowercase (list, set, dict, tuple), in accordance with PEP 585. #4833
Added py::typing::Iterator<T>, py::typing::Iterable<T>. #4832
Render py::function as Callable in docstring. #4829
Also bump PYBIND11_INTERNALS_VERSION for MSVC, which unlocks two new features without creating additional incompatibilities. #4819
Guard against crashes/corruptions caused by modules built with different MSVC versions. #4779
A long-standing bug in the handling of Python multiple inheritance was fixed. See PR #4762 for the rather complex details. #4762
Fix bind_map with using declarations. #4952
Qualify py::detail::concat usage to avoid ADL selecting one from somewhere else, such as modernjson's concat. #4955
Use new PyCode API on Python 3.12+. #4916
Minor cleanup from warnings reported by Clazy. #4988
Remove typing and duplicate class_ for KeysView/ValuesView/ItemsView. #4985
Use PyObject_VisitManagedDict() and PyObject_ClearManagedDict() on Python 3.13 and newer. #4973
Update make_static_property_type() to make it compatible with Python 3.13. #4971

Render typed iterators for make_iterator, make_key_iterator, make_value_iterator. #4876
Add several missing type name specializations. #5073
Change docstring render for py::buffer, py::sequence and py::handle (to Buffer, Sequence, Any). #4831
Fixed base_enum.__str__ docstring. #4827
Enforce single line docstring signatures. #4735
Special 'typed' wrappers now available in typing.h to annotate tuple, dict, list, set, and function. #4259
Create handle_type_name specialization to type-hint variable length tuples. #5051

Setting PYBIND11_FINDPYTHON to OFF will force the old FindPythonLibs mechanism to be used. #5042
Skip empty PYBIND11_PYTHON_EXECUTABLE_LAST for the first cmake run. #4856
Fix FindPython mode exports & avoid pkg_resources if importlib.metadata available. #4941
Python_ADDITIONAL_VERSIONS (classic search) now includes 3.12. #4909
pybind11.pc is now relocatable by default as long as install destinations are not absolute paths. #4830
Correctly detect CMake FindPython removal when used as a subdirectory. #4806
Don't require the libs component on CMake 3.18+ when using PYBIND11_FINDPYTHON (fixes manylinux builds). #4805
pybind11_strip is no longer automatically applied when CMAKE_BUILD_TYPE is unset. #4780
Support DEBUG_POSFIX correctly for debug builds. #4761
Hardcode lto/thin lto for Emscripten cross-compiles. #4642
Upgrade maximum supported CMake version to 3.27 to fix CMP0148 warnings. #4786

Documentation:

Small fix to grammar in functions.rst. #4791
Remove upper bound in example pyproject.toml for setuptools. #4774

CI:

CI: Update NVHPC to 23.5 and Ubuntu 20.04. #4764
Test on PyPy 3.10. #4714

Other:

Use Ruff formatter instead of Black. #4912
An assert() was added to help Coverty avoid generating a false positive. #4817

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Published by henryiii about 2 years ago

pybind11 - Version 2.11.1

Changes:

PYBIND11_NO_ASSERT_GIL_HELD_INCREF_DECREF is now provided as an option for disabling the default-on PyGILState_Check()'s in pybind11::handle's inc_ref() & dec_ref(). #4753
PYBIND11_ASSERT_GIL_HELD_INCREF_DECREF was disabled for PyPy in general (not just PyPy Windows). #4751

NOTE: There was a version number mishap in the first attempt making this release. It was fixed within minutes with #4756 and the stable branch was re-tagged. The upload to PyPI only succeeded for the corrected release.

- C++
Published by rwgk almost 3 years ago

pybind11 - Version 2.11.0

New features:

The newly added pybind11::detail::is_move_constructible trait can be specialized for cases in which std::is_move_constructible does not work as needed. This is very similar to the long-established pybind11::detail::is_copy_constructible. #4631
Introduce recursive_container_traits. #4623
pybind11/type_caster_pyobject_ptr.h was added to support automatic wrapping of APIs that make use of PyObject *. This header needs to included explicitly (i.e. it is not included implicitly with pybind/pybind11.h). #4601
format_descriptor<> & npy_format_descriptor<> PyObject * specializations were added. The latter enables py::array_t<PyObject *> to/from-python conversions. #4674
buffer_info gained an item_type_is_equivalent_to<T>() member function. #4674
The capsule API gained a user-friendly constructor (py::capsule(ptr, "name", dtor)). #4720

Changes:

PyGILState_Check()'s in pybind11::handle's inc_ref() & dec_ref() are now enabled by default again. #4246
py::initialize_interpreter() using PyConfig_InitPythonConfig() instead of PyConfig_InitIsolatedConfig(), to obtain complete sys.path. #4473
Cast errors now always include Python type information, even if PYBIND11_DETAILED_ERROR_MESSAGES is not defined. This increases binary sizes slightly (~1.5%) but the error messages are much more informative. #4463
The docstring generation for the std::array-list caster was fixed. Previously, signatures included the size of the list in a non-standard, non-spec compliant way. The new format conforms to PEP 593. Tooling for processing the docstrings may need to be updated accordingly. #4679
Setter return values (which are inaccessible for all practical purposes) are no longer converted to Python (only to be discarded). #4621
Allow lambda specified to function definition to be noexcept(true) in C++17. #4593
Get rid of recursive template instantiations for concatenating type signatures on C++17 and higher. #4587
Compatibility with Python 3.12 (beta). Note that the minimum pybind11 ABI version for Python 3.12 is version 5. (The default ABI version for Python versions up to and including 3.11 is still version 4.). #4570
With PYBIND11_INTERNALS_VERSION 5 (default for Python 3.12+), MSVC builds use std::hash<std::type_index> and std::equal_to<std::type_index> instead of string-based type comparisons. This resolves issues when binding types defined in the unnamed namespace. #4319
Python exception __notes__ (introduced with Python 3.11) are now added to the error_already_set::what() output. #4678

Build system improvements:

CMake 3.27 support was added, CMake 3.4 support was dropped. FindPython will be used if FindPythonInterp is not present. #4719
Update clang-tidy to 15 in CI. #4387
Moved the linting framework over to Ruff. #4483
Skip lto checks and target generation when CMAKE_INTERPROCEDURAL_OPTIMIZATION is defined. #4643
No longer inject -stdlib=libc++, not needed for modern Pythons (macOS 10.9+). #4639
PyPy 3.10 support was added, PyPy 3.7 support was dropped. #4728
Testing with Python 3.12 beta releases was added. #4713

- C++
Published by rwgk almost 3 years ago

pybind11 - Version 2.10.4

Changes:

python3 -m pybind11 gained a --version option (prints the version and exits). #4526

Bug Fixes:

Fix a warning when pydebug is enabled on Python 3.11. #4461
Ensure gil_scoped_release RAII is non-copyable. #4490
Ensure the tests dir does not show up with new versions of setuptools. #4510
Better stacklevel for a warning in setuptools helpers. #4516

- C++
Published by henryiii about 3 years ago

pybind11 - Version 2.10.3

Changes:

Temporarily made our GIL status assertions (added in 2.10.2) disabled by default (re-enable manually by defining PYBIND11_ASSERT_GIL_HELD_INCREF_DECREF, will be enabled in 2.11). #4432
Improved error messages when inc_ref/dec_ref are called with an invalid GIL state. #4427 #4436

Bug Fixes:

Some minor touchups found by static analyzers. #4440

- C++
Published by henryiii over 3 years ago

pybind11 - Version 2.10.2

Changes:

scoped_interpreter constructor taking PyConfig. #4372
pybind11/eigen/tensor.h adds converters to and from Eigen::Tensor and Eigen::TensorMap #4201
PyGILState_Check()'s were integrated to pybind11::handle inc_ref() & dec_ref(). The added GIL checks are guarded by PYBIND11_ASSERT_GIL_HELD_INCREF_DECREF, which is the default only if NDEBUG is not defined. #4246
Add option for enable/disable enum members in docstring. #2768
Fixed typing of KeysView, ValuesView and ItemsView in bind_map. #4353

Bug fixes:

Bug fix affecting only Python 3.6 under very specific, uncommon conditions: move PyEval_InitThreads() call to the correct location. #4350
Fix segfault bug when passing foreign native functions to functional.h. #4254

Build system improvements:

Support setting PYTHON_LIBRARIES manually for Windows ARM cross-compilation (classic mode). #4406
Extend IPO/LTO detection for ICX (a.k.a IntelLLVM) compiler. #4402
Allow calling find_package(pybind11 CONFIG) multiple times from separate directories in the same CMake project and properly link Python (new mode). #4401
multiprocessing_set_spawn in pytest fixture for added safety. #4377
Fixed a bug in two pybind11/tools cmake scripts causing "Unknown arguments specified" errors. #4327

- C++
Published by henryiii over 3 years ago

pybind11 - Version 2.10.1

This is the first version to fully support embedding the newly released Python 3.11.

Changes:

Allow pybind11::capsule constructor to take null destructor pointers. #4221
embed.h was changed so that PYTHONPATH is used also with Python 3.11 (established behavior). #4119
A PYBIND11_SIMPLE_GIL_MANAGEMENT option was added (cmake, C++ define), along with many additional tests in test_gil_scoped.py. The option may be useful to try when debugging GIL-related issues, to determine if the more complex default implementation is or is not to blame. See #4216 for background. WARNING: Please be careful to not create ODR violations when using the option: everything that is linked together with mutual symbol visibility needs to be rebuilt. #4216
PYBIND11_EXPORT_EXCEPTION was made non-empty only under macOS. This makes Linux builds safer, and enables the removal of warning suppression pragmas for Windows. #4298

Bug fixes:

Fixed a bug where UnicodeDecodeError was not propagated from various py::str ctors when decoding surrogate utf characters. #4294
Revert perfect forwarding for make_iterator. This broke at least one valid use case. May revisit later. #4234
Fix support for safe casts to void* (regression in 2.10.0). #4275
Fix char8_t support (regression in 2.9). #4278
Unicode surrogate character in Python exception message leads to process termination in error_already_set::what(). #4297
Fix MSVC 2019 v.1924 & C++14 mode error for overload_cast. #4188
Make augmented assignment operators non-const for the object-api. Behavior was previously broken for augmented assignment operators. #4065
Add proper error checking to C++ bindings for Python list append and insert. #4208
Work-around for Nvidia's CUDA nvcc compiler in versions 11.4.0 - 11.8.0. #4220
A workaround for PyPy was added in the py::error_already_set implementation, related to PR #1895 released with v2.10.0. #4079
Fixed compiler errors when C++23 std::forward_like is available. #4136
Properly raise exceptions in contains methods (like when an object in unhashable). #4209
Further improve another error in exception handling. #4232
get_local_internals() was made compatible with finalize_interpreter(), fixing potential freezes during interpreter finalization. #4192

Performance and style:

Reserve space in set and STL map casters if possible. This will prevent unnecessary rehashing / resizing by knowing the number of keys ahead of time for Python to C++ casting. This improvement will greatly speed up the casting of large unordered maps and sets. #4194
GIL RAII scopes are non-copyable to avoid potential bugs. #4183
Explicitly default all relevant ctors for pytypes in the PYBIND11_OBJECT macros and enforce the clang-tidy checks modernize-use-equals-default in macros as well. #4017
Optimize iterator advancement in C++ bindings. #4237
Use the modern PyObject_GenericGetDict and PyObject_GenericSetDict for handling dynamic attribute dictionaries. #4106
Document that users should use PYBIND11_NAMESPACE instead of using pybind11 when opening namespaces. Using namespace declarations and namespace qualification remain the same as pybind11. This is done to ensure consistent symbol visibility. #4098
Mark detail::forward_like as constexpr. #4147
Optimize unpackingcollector when processing `argv` arguments. #4219
Optimize casting C++ object to None. #4269

Build system improvements:

CMake: revert overwrite behavior, now opt-in with PYBIND11_PYTHONLIBS_OVERRWRITE OFF. #4195
Include a pkg-config file when installing pybind11, such as in the Python package. #4077
Avoid stripping debug symbols when CMAKE_BUILD_TYPE is set to DEBUG instead of Debug. #4078
Followup to #3948, fixing vcpkg again. #4123

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Published by henryiii over 3 years ago

pybind11 - Version 2.10.0

Removed support for Python 2.7, Python 3.5, and MSVC 2015. Support for MSVC 2017 is limited due to availability of CI runners; we highly recommend MSVC 2019 or 2022 be used. Initial support added for Python 3.11.

New features:

py::anyset & py::frozenset were added, with copying (cast) to std::set (similar to set). #3901
Support bytearray casting to string. #3707
type_caster<std::monostate> was added. std::monostate is a tag type that allows std::variant to act as an optional, or allows default construction of a std::variant holding a non-default constructible type. #3818
pybind11::capsule::set_name added to mutate the name of the capsule instance. #3866
NumPy: dtype constructor from type number added, accessors corresponding to Python API dtype.num, dtype.byteorder, dtype.flags and dtype.alignment added. #3868

Changes:

Python 3.6 is now the minimum supported version. #3688 #3719
The minimum version for MSVC is now 2017. #3722
Fix issues with CPython 3.11 betas and add to supported test matrix. #3923
error_already_set is now safer and more performant, especially for exceptions with long tracebacks, by delaying computation. #1895
Improve exception handling in python str bindings. #3826
The bindings for capsules now have more consistent exception handling. #3825
PYBIND11_OBJECT_CVT and PYBIND11_OBJECT_CVT_DEFAULT macro can now be used to define classes in namespaces other than pybind11. #3797
Error printing code now uses PYBIND11_DETAILED_ERROR_MESSAGES instead of requiring NDEBUG, allowing use with release builds if desired. #3913
Implicit conversion of the literal 0 to pybind11::handle is now disabled. #4008

Bug fixes:

Fix exception handling when pybind11::weakref() fails. #3739
module_::def_submodule was missing proper error handling. This is fixed now. #3973
The behavior or error_already_set was made safer and the highly opaque "Unknown internal error occurred" message was replaced with a more helpful message. #3982
error_already_set::what() now handles non-normalized exceptions correctly. #3971
Support older C++ compilers where filesystem is not yet part of the standard library and is instead included in std::experimental::filesystem. #3840
Fix -Wfree-nonheap-object warnings produced by GCC by avoiding returning pointers to static objects with return_value_policy::take_ownership. #3946
Fix cast from pytype rvalue to another pytype. #3949
Ensure proper behavior when garbage collecting classes with dynamic attributes in Python >=3.9. #4051
A couple long-standing PYBIND11_NAMESPACE __attribute__((visibility("hidden"))) inconsistencies are now fixed (affects only unusual environments). #4043
pybind11::detail::get_internals() is now resilient to in-flight Python exceptions. #3981
Arrays with a dimension of size 0 are now properly converted to dynamic Eigen matrices (more common in NumPy 1.23). #4038
Avoid catching unrelated errors when importing NumPy. #3974

Performance and style:

Added an accessor overload of (object &&key) to reference steal the object when using python types as keys. This prevents unnecessary reference count overhead for attr, dictionary, tuple, and sequence look ups. Added additional regression tests. Fixed a performance bug the caused accessor assignments to potentially perform unnecessary copies. #3970
Perfect forward all args of make_iterator. #3980
Avoid potential bug in pycapsule destructor by adding an error_guard to one of the dtors. #3958
Optimize dictionary access in strip_padding for numpy. #3994
stl_bind.h bindings now take slice args as a const-ref. #3852
Made slice constructor more consistent, and improve performance of some casters by allowing reference stealing. #3845
Change numpy dtype from_args method to use const ref. #3878
Follow rule of three to ensure PyErr_Restore is called only once. #3872
Added missing perfect forwarding for make_iterator functions. #3860
Optimize c++ to python function casting by using the rvalue caster. #3966
Optimize Eigen sparse matrix casting by removing unnecessary temporary. #4064
Avoid potential implicit copy/assignment constructors causing double free in strdup_gaurd. #3905
Enable clang-tidy checks misc-definitions-in-headers, modernize-loop-convert, and modernize-use-nullptr. #3881 #3988

Build system improvements:

CMake: Fix file extension on Windows with cp36 and cp37 using FindPython. #3919
CMake: Support multiple Python targets (such as on vcpkg). #3948
CMake: Fix issue with NVCC on Windows. #3947
CMake: Drop the bitness check on cross compiles (like targeting WebAssembly via Emscripten). #3959
Add MSVC builds in debug mode to CI. #3784
MSVC 2022 C++20 coverage was added to GitHub Actions, including Eigen. #3732, #3741

Backend and tidying up:

New theme for the documentation. #3109
Remove idioms in code comments. Use more inclusive language. #3809
#include <iostream> was removed from the pybind11/stl.h header. Your project may break if it has a transitive dependency on this include. The fix is to "Include What You Use". #3928
Avoid setup.py <command> usage in internal tests. #3734

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Published by henryiii almost 4 years ago

pybind11 - Version 2.9.2

Changes:

Enum now has an __index__ method on Python <3.8 too. #3700
Local internals are now cleared after finalizing the interpreter. #3744

Bug fixes:

Better support for Python 3.11 alphas. #3694
PYBIND11_TYPE_CASTER now uses fully qualified symbols, so it can be used outside of pybind11::detail. #3758
Some fixes for PyPy 3.9. #3768
Fixed a potential memleak in PyPy in get_type_override. #3774
Fix usage of VISIBILITY_INLINES_HIDDEN. #3721

Build system improvements:

Uses sysconfig module to determine installation locations on Python >= 3.10, instead of distutils which has been deprecated. #3764
Support Catch 2.13.5+ (supporting GLIBC 2.34+). #3679
Fix test failures with numpy 1.22 by ignoring whitespace when comparing str() of dtypes. #3682

Backend and tidying up:

clang-tidy: added readability-qualified-auto, readability-braces-around-statements, cppcoreguidelines-prefer-member-initializer, clang-analyzer-optin.performance.Padding, cppcoreguidelines-pro-type-static-cast-downcast, and readability-inconsistent-declaration-parameter-name. #3702, #3699, #3716, #3709
clang-format was added to the pre-commit actions, and the entire code base automatically reformatted (after several iterations preparing for this leap). #3713

- C++
Published by henryiii about 4 years ago

pybind11 - Version 2.9.1

Changes:

If possible, attach Python exception with py::raise_from to TypeError when casting from C++ to Python. This will give additional info if Python exceptions occur in the caster. Adds a test case of trying to convert a set from C++ to Python when the hash function is not defined in Python. #3605
Add a mapping of C++11 nested exceptions to their Python exception equivalent using py::raise_from. This attaches the nested exceptions in Python using the __cause__ field. #3608
Propagate Python exception traceback using raise_from if a pybind11 function runs out of overloads. #3671
py::multiple_inheritance is now only needed when C++ bases are hidden from pybind11. #3650 and #3659

Bug fixes:

Remove a boolean cast in numpy.h that causes MSVC C4800 warnings when compiling against Python 3.10 or newer. #3669
Render py::bool_ and py::float_ as bool and float respectively. #3622

Build system improvements:

Fix CMake extension suffix computation on Python 3.10+. #3663
Allow CMAKE_ARGS to override CMake args in pybind11's own setup.py. #3577
Remove a few deprecated c-headers. #3610
More uniform handling of test targets. #3590
Add clang-tidy readability check to catch potentially swapped function args. #3611

- C++
Published by henryiii over 4 years ago

pybind11 - Version 2.9.0

This is the last version to support Python 2.7 and 3.5.

New Features:

Allow py::args to be followed by other arguments; the remaining arguments are implicitly keyword-only, as if a py::kw_only{} annotation had been used. #3402

Changes:

Make str/bytes/memoryview more interoperable with std::string_view. #3521
Replace _ with const_name in internals, avoid defining pybind::_ if _ defined as macro (common gettext usage) #3423

Bug fixes:

Fix a rare warning about extra copy in an Eigen constructor. #3486
Fix caching of the C++ overrides. #3465
Add missing std::forward calls to some cpp_function overloads. #3443
Support PyPy 7.3.7 and the PyPy3.8 beta. Test python-3.11 on PRs with the python dev label. #3419
Replace usage of deprecated Eigen::MappedSparseMatrix with Eigen::Map<Eigen::SparseMatrix<...>> for Eigen 3.3+. #3499
Tweaks to support Microsoft Visual Studio 2022. #3497

Build system improvements:

Nicer CMake printout and IDE organisation for pybind11's own tests. #3479
CMake: report version type as part of the version string to avoid a spurious space in the package status message. #3472
Flags starting with -g in $CFLAGS and $CPPFLAGS are no longer overridden by .Pybind11Extension. #3436
Ensure ThreadPool is closed in setup_helpers. #3548
Avoid LTS on mips64 and ppc64le (reported broken). #3557

- C++
Published by henryiii over 4 years ago

pybind11 - Version 2.8.1

v2.8.1 (Oct 27, 2021)

Changes and additions: - The simple namespace creation shortcut added in 2.8.0 was deprecated due to usage of CPython internal API, and will be removed soon. Use py::module_::import("types").attr("SimpleNamespace"). #3374 - Add C++ Exception type to throw and catch AttributeError. Useful for defining custom __setattr__ and __getattr__ methods. #3387

Fixes: - Fixed the potential for dangling references when using properties with std::optional types. #3376 - Modernize usage of PyCodeObject on Python 3.9+ (moving toward support for Python 3.11a1) #3368 - A long-standing bug in eigen.h was fixed (originally PR #3343). The bug was unmasked by newly added static_assert's in the Eigen 3.4.0 release. #3352 - Support multiple raw inclusion of CMake helper files (Conan.io does this for multi-config generators). #3420 - Fix harmless warning on upcoming CMake 3.22. #3368 - Fix 2.8.0 regression with MSVC 2017 + C++17 mode + Python 3. #3407 - Fix 2.8.0 regression that caused undefined behavior (typically segfaults) in make_key_iterator/make_value_iterator if dereferencing the iterator returned a temporary value instead of a reference. #3348

- C++
Published by rwgk over 4 years ago

pybind11 - Version 2.8.0

New features:

Added py::raise_from to enable chaining exceptions. #3215
Allow exception translators to be optionally registered local to a module instead of applying globally across all pybind11 modules. Use register_local_exception_translator(ExceptionTranslator&& translator) instead of register_exception_translator(ExceptionTranslator&& translator) to keep your exception remapping code local to the module. #2650
Add make_simple_namespace function for instantiating Python SimpleNamespace objects. #2840
pybind11::scoped_interpreter and initialize_interpreter have new arguments to allow sys.argv initialization. #2341
Allow Python builtins to be used as callbacks in CPython. #1413
Added view to view arrays with a different datatype. #987
Implemented reshape on arrays. #984
Enable defining custom __new__ methods on classes by fixing bug preventing overriding methods if they have non-pybind11 siblings. #3265
Add make_value_iterator(), and fix make_key_iterator() to return references instead of copies. #3293
Improve the classes generated by bind_map: #3310
- Change .items from an iterator to a dictionary view.
- Add .keys and .values (both dictionary views).
- Allow __contains__ to take any object.
pybind11::custom_type_setup was added, for customizing the PyHeapTypeObject corresponding to a class, which may be useful for enabling garbage collection support, among other things. #3287

Changes:

Set __file__ constant when running eval_file in an embedded interpreter. #3233
Python objects and (C++17) std::optional now accepted in py::slice constructor. #1101
The pybind11 proxy types str, bytes, bytearray, tuple, list now consistently support passing ssize_t values for sizes and indexes. Previously, only size_t was accepted in several interfaces. #3219
Avoid evaluating PYBIND11_TLS_REPLACE_VALUE arguments more than once. #3290

Fixes:

Bug fix: enum value's __int__ returning non-int when underlying type is bool or of char type #1334
Fixes bug in setting error state in Capsule's pointer methods. #3261
A long-standing memory leak in py::cpp_function::initialize was fixed. #3229
Fixes thread safety for some pybind11::type_caster which require lifetime extension, such as for std::string_view. #3237
Restore compatibility with gcc 4.8.4 as distributed by ubuntu-trusty, linuxmint-17. #3270

Build system improvements:

Fix regression in CMake Python package config: improper use of absolute path. #3144
Cached Python version information could become stale when CMake was re-run with a different Python version. The build system now detects this and updates this information. #3299
Specified UTF8-encoding in setup.py calls of open(). #3137
Fix a harmless warning from CMake 3.21 with the classic Python discovery. #3220
Eigen repo and version can now be specified as cmake options. #3324

Backend and tidying up:

Reduced thread-local storage required for keeping alive temporary data for type conversion to one key per ABI version, rather than one key per extension module. This makes the total thread-local storage required by pybind11 2 keys per ABI version. #3275
Optimize NumPy array construction with additional moves. #3183
Conversion to std::string and std::string_view now avoids making an extra copy of the data on Python >= 3.3. #3257
Remove const modifier from certain C++ methods on Python collections (list, set, dict) such as (clear(), append(), insert(), etc...) and annotated them with py-non-const.
Enable readability clang-tidy-const-return and remove useless consts. #3254 #3194
The clang-tidy google-explicit-constructor option was enabled. #3250
Mark a pytype move constructor as noexcept (perf). #3236
Enable clang-tidy check to guard against inheritance slicing. #3210
Legacy warning suppression pragma were removed from eigen.h. On Unix platforms, please use -isystem for Eigen include directories, to suppress compiler warnings originating from Eigen headers. Note that CMake does this by default. No adjustments are needed for Windows. #3198
Format pybind11 with isort consistent ordering of imports #3195
The warnings-suppression "pragma clamp" at the top/bottom of pybind11 was removed, clearing the path to refactoring and IWYU cleanup. #3186
Enable most bugprone checks in clang-tidy and fix the found potential bugs and poor coding styles. #3166
Add clang-tidy-readability rules to make boolean casts explicit improving code readability. Also enabled other misc and readability clang-tidy checks. #3148
Move object in .pop() for list. #3116

- C++
Published by henryiii over 4 years ago

pybind11 - Version 2.7.1

Minor missing functionality added:

Allow Python builtins to be used as callbacks in CPython. #1413

Bug fixes:

Fix regression in CMake Python package config: improper use of absolute path. #3144
Fix Mingw64 and add to the CI testing matrix. #3132
Specified UTF8-encoding in setup.py calls of open(). #3137
Add clang-tidy-readability rules to make boolean casts explicit improving code readability. Also enabled other misc and readability clang-tidy checks. #3148
Move object in .pop() for list. #3116

Backend and tidying up:

Removed and fixed warning suppressions. #3127 #3129 #3135 #3141 #3142 #3150 #3152 #3160 #3161

- C++
Published by henryiii almost 5 years ago

pybind11 - Version 2.7.0

New features:

Enable py::implicitly_convertible<py::none, ...> for py::class_-wrapped types. #3059
Allow function pointer extraction from overloaded functions. #2944
NumPy: added .char_() to type which gives the NumPy public char result, which also distinguishes types by bit length (unlike .kind()). #2864
Add pybind11::bytearray to manipulate bytearray similar to bytes. #2799
pybind11/stl/filesystem.h registers a type caster that, on C++17/Python 3.6+, converts std::filesystem::path to pathlib.Path and any os.PathLike to std::filesystem::path. #2730
A PYBIND11_VERSION_HEX define was added, similar to PY_VERSION_HEX. #3120

Changes:

py::str changed to exclusively hold PyUnicodeObject. Previously py::str could also hold bytes, which is probably surprising, was never documented, and can mask bugs (e.g. accidental use of py::str instead of py::bytes). #2409
Add a safety guard to ensure that the Python GIL is held when C++ calls back into Python via object_api<>::operator() (e.g. py::function __call__). (This feature is available for Python 3.6+ only.) #2919
Catch a missing self argument in calls to __init__(). #2914
Use std::string_view if available to avoid a copy when passing an object to a std::ostream. #3042
An important warning about thread safety was added to the iostream.h documentation; attempts to make py::scoped_ostream_redirect thread safe have been removed, as it was only partially effective. #2995

Fixes:

Performance: avoid unnecessary strlen calls. #3058
Fix auto-generated documentation string when using const T in pyarray_t. #3020
Unify error messages thrown by simple_collector/unpacking_collector. #3013
pybind11::builtin_exception is now explicitly exported, which means the types included/defined in different modules are identical, and exceptions raised in different modules can be caught correctly. The documentation was updated to explain that custom exceptions that are used across module boundaries need to be explicitly exported as well. #2999
Fixed exception when printing UTF-8 to a scoped_ostream_redirect. #2982
Pickle support enhancement: setstate implementation will attempt to setattr __dict__ only if the unpickled dict object is not empty, to not force use of py::dynamic_attr() unnecessarily. #2972
Allow negative timedelta values to roundtrip. #2870
Fix unchecked errors could potentially swallow signals/other exceptions. #2863
Add null pointer check with std::localtime. #2846
Fix the weakref constructor from py::object to create a new weakref on conversion. #2832
Avoid relying on exceptions in C++17 when getting a shared_ptr holder from a shared_from_this class. #2819
Allow the codec's exception to be raised instead of RuntimeError when casting from py::str to std::string. #2903

Build system improvements:

In setup_helpers.py, test for platforms that have some multiprocessing features but lack semaphores, which ParallelCompile requires. #3043
Fix pybind11_INCLUDE_DIR in case CMAKE_INSTALL_INCLUDEDIR is absolute. #3005
Fix bug not respecting WITH_SOABI or WITHOUT_SOABI to CMake. #2938
Fix the default Pybind11Extension compilation flags with a Mingw64 python. #2921
Clang on Windows: do not pass /MP (ignored flag). #2824
pybind11.setup_helpers.intree_extensions can be used to generate Pybind11Extension instances from cpp files placed in the Python package source tree. #2831

Backend and tidying up:

Enable clang-tidy performance, readability, and modernization checks throughout the codebase to enforce best coding practices. #3046, #3049, #3051, #3052, #3080, and #3094
Checks for common misspellings were added to the pre-commit hooks. #3076
Changed Werror to stricter Werror-all for Intel compiler and fixed minor issues. #2948
Fixed compilation with GCC < 5 when the user defines _GLIBCXX_USE_CXX11_ABI. #2956
Added nox support for easier local testing and linting of contributions. #3101 and #3121
Avoid RTD style issue with docutils 0.17+. #3119
Support pipx run, such as pipx run pybind11 --include for a quick compile. #3117

- C++
Published by henryiii almost 5 years ago

pybind11 - Version 2.6.2

Minor missing functionality added:

enum: add missing Enum.value property. #2739
Allow thread termination to be avoided during shutdown for CPython 3.7+ via .disarm for gil_scoped_acquire/gil_scoped_release. #2657

Fixed or improved behavior in a few special cases:

Fix bug where the constructor of object subclasses would not throw on being passed a Python object of the wrong type. #2701
The type_caster for integers does not convert Python objects with __int__ anymore with noconvert or during the first round of trying overloads. #2698
When casting to a C++ integer, __index__ is always called and not considered as conversion, consistent with Python 3.8+. #2801

Build improvements:

Setup helpers: extra_compile_args and extra_link_args automatically set by Pybind11Extension are now prepended, which allows them to be overridden by user-set extra_compile_args and extra_link_args. #2808
Setup helpers: Don\'t trigger unused parameter warning. #2735
CMake: Support running with --warn-uninitialized active. #2806
CMake: Avoid error if included from two submodule directories. #2804
CMake: Fix STATIC / SHARED being ignored in FindPython mode. #2796
CMake: Respect the setting for CMAKE_CXX_VISIBILITY_PRESET if defined. #2793
CMake: Fix issue with FindPython2/FindPython3 not working with pybind11::embed. #2662
CMake: mixing local and installed pybind11\'s would prioritize the installed one over the local one (regression in 2.6.0). #2716

Bug fixes:

Fixed segfault in multithreaded environments when using scoped_ostream_redirect. #2675
Leave docstring unset when all docstring-related options are disabled, rather than set an empty string. #2745
The module key in builtins that pybind11 uses to store its internals changed from std::string to a python str type (more natural on Python 2, no change on Python 3). #2814
Fixed assertion error related to unhandled (later overwritten) exception in CPython 3.8 and 3.9 debug builds. #2685
Fix py::gil_scoped_acquire assert with CPython 3.9 debug build. #2683
Fix issue with a test failing on PyTest 6.2. #2741

Warning fixes:

Fix warning modifying constructor parameter \'flag\' that shadows a field of \'set_flag\' [-Wshadow-field-in-constructor-modified]. #2780
Suppressed some deprecation warnings about old-style __init__/__setstate__ in the tests. #2759

Valgrind work:

Fix invalid access when calling a pybind11 __init__ on a non-pybind11 class instance. #2755
Fixed various minor memory leaks in pybind11\'s test suite. #2758
Resolved memory leak in cpp_function initialization when exceptions occurred. #2756
Added a Valgrind build, checking for leaks and memory-related UB, to CI. #2746

Compiler support:

Intel compiler was not activating C++14 support due to a broken define. #2679
Support ICC and NVIDIA HPC SDK in C++17 mode. #2729
Support Intel OneAPI compiler (ICC 20.2) and add to CI. #2573

- C++
Published by henryiii over 5 years ago

pybind11 - Version 2.6.1

py::exec, py::eval, and py::eval_file now add the builtins module as "__builtins__" to their globals argument, better matching exec and eval in pure Python. #2616
setup_helpers will no longer set a minimum macOS version higher than the current version. #2622
Allow deleting static properties. #2629
Seal a leak in def_buffer, cleaning up the capture object after the class_ object goes out of scope. #2634
pybind11_INCLUDE_DIRS was incorrect, potentially causing a regression if it was expected to include PYTHON_INCLUDE_DIRS (please use targets instead). #2636
Added parameter names to the py::enum_ constructor and methods, avoiding arg0 in the generated docstrings. #2637
Added needs_recompile optional function to the ParallelCompiler helper, to allow a recompile to be skipped based on a user-defined function. #2643

- C++
Published by henryiii over 5 years ago

pybind11 - Version 2.6.0

New features:

Keyword-only arguments supported in Python 2 or 3 with py::kw_only(). #2100
Positional-only arguments supported in Python 2 or 3 with py::pos_only(). #2459
py::is_final() class modifier to block subclassing (CPython only). #2151
Added py::prepend(), allowing a function to be placed at the beginning of the overload chain. #1131
Access to the type object now provided with py::type::of<T>() and py::type::of(h). #2364
Perfect forwarding support for methods. #2048
Added py::error_already_set::discard_as_unraisable(). #2372
py::hash is now public. #2217
py::class_<union_type> is now supported. Note that writing to one data member of the union and reading another (type punning) is UB in C++. Thus pybind11-bound enums should never be used for such conversions. #2320.
Classes now check local scope when registering members, allowing a subclass to have a member with the same name as a parent (such as an enum). #2335

Code correctness features:

Error now thrown when __init__ is forgotten on subclasses. #2152
Throw error if conversion to a pybind11 type if the Python object isn't a valid instance of that type, such as py::bytes(o) when py::object o isn't a bytes instance. #2349
Throw if conversion to str fails. #2477

API changes:

py::module was renamed py::module_ to avoid issues with C++20 when used unqualified, but an alias py::module is provided for backward compatibility. #2489
Public constructors for py::module_ have been deprecated; please use pybind11::module_::create_extension_module if you were using the public constructor (fairly rare after PYBIND11_MODULE was introduced). #2552
PYBIND11_OVERLOAD* macros and get_overload function replaced by correctly-named PYBIND11_OVERRIDE* and get_override, fixing inconsistencies in the presence of a closing ; in these macros. get_type_overload is deprecated. #2325

Packaging / building improvements:

The Python package was reworked to be more powerful and useful. #2433
- build-setuptools is easier thanks to a new pybind11.setup_helpers module, which provides utilities to use setuptools with pybind11. It can be used via PEP 518, setup_requires, or by directly importing or copying setup_helpers.py into your project.
- CMake configuration files are now included in the Python package. Use pybind11.get_cmake_dir() or python -m pybind11 --cmakedir to get the directory with the CMake configuration files, or include the site-packages location in your CMAKE_MODULE_PATH. Or you can use the new pybind11[global] extra when you install pybind11, which installs the CMake files and headers into your base environment in the standard location.
- pybind11-config is another way to write python -m pybind11 if you have your PATH set up.
- Added external typing support to the helper module, code from import pybind11 can now be type checked. #2588
Minimum CMake required increased to 3.4. #2338 and #2370
- Full integration with CMake's C++ standard system and compile features replaces PYBIND11_CPP_STANDARD.
- Generated config file is now portable to different Python/compiler/CMake versions.
- Virtual environments prioritized if PYTHON_EXECUTABLE is not set (venv, virtualenv, and conda) (similar to the new FindPython mode).
- Other CMake features now natively supported, like CMAKE_INTERPROCEDURAL_OPTIMIZATION, set(CMAKE_CXX_VISIBILITY_PRESET hidden).
- CUDA as a language is now supported.
- Helper functions pybind11_strip, pybind11_extension, pybind11_find_import added, see cmake/index.
- Optional find-python-mode and nopython-mode with CMake. #2370
Uninstall target added. #2265 and #2346
pybind11_add_module() now accepts an optional OPT_SIZE flag that switches the binding target to size-based optimization if the global build type can not always be fixed to MinSizeRel (except in debug mode, where optimizations remain disabled). MinSizeRel or this flag reduces binary size quite substantially (~25% on some platforms). #2463

Smaller or developer focused features and fixes:

Moved mkdoc.py to a new repo, pybind11-mkdoc. There are no longer submodules in the main repo.
py::memoryview segfault fix and update, with new py::memoryview::from_memory in Python 3, and documentation. #2223
Fix for buffer_info on Python 2. #2503
If __eq__ defined but not __hash__, __hash__ is now set to None. #2291
py::ellipsis now also works on Python 2. #2360
Pointer to std::tuple & std::pair supported in cast. #2334
Small fixes in NumPy support. py::array now uses py::ssize_t as first argument type. #2293
Added missing signature for py::array. #2363
unchecked_mutable_reference has access to operator () and [] when const. #2514
py::vectorize is now supported on functions that return void. #1969
py::capsule supports get_pointer and set_pointer. #1131
Fix crash when different instances share the same pointer of the same type. #2252
Fix for py::len not clearing Python's error state when it fails and throws. #2575
Bugfixes related to more extensive testing, new GitHub Actions CI. #2321
Bug in timezone issue in Eastern hemisphere midnight fixed. #2438
std::chrono::time_point now works when the resolution is not the same as the system. #2481
Bug fixed where py::array_t could accept arrays that did not match the requested ordering. #2484
Avoid a segfault on some compilers when types are removed in Python. #2564
py::arg::none() is now also respected when passing keyword arguments. #2611
PyPy fixes, PyPy 7.3.x now supported, including PyPy3. (Known issue with PyPy2 and Windows #2596). #2146
CPython 3.9.0 workaround for undefined behavior (macOS segfault). #2576
CPython 3.9 warning fixes. #2253
Improved C++20 support, now tested in CI. #2489 #2599
Improved but still incomplete debug Python interpreter support. #2025
NVCC (CUDA 11) now supported and tested in CI. #2461
NVIDIA PGI compilers now supported and tested in CI. #2475
At least Intel 18 now explicitly required when compiling with Intel. #2577
Extensive style checking in CI, with pre-commit support. Code modernization, checked by clang-tidy.
Expanded docs, including new main page, new installing section, and CMake helpers page, along with over a dozen new sections on existing pages.
In GitHub, new docs for contributing and new issue templates.

- C++
Published by henryiii over 5 years ago

pybind11 - Version 2.6.0 RC 3

Next release candidate.

Factory constructor scope fix
Support for PyPy3 on Windows 32, added to CI
Fixes for C++20, added to CI for Clang, GCC, and MSVC 2019
Black formatting for all Python code
Allow ABI string overrides from 2.4 (advanced)

- C++
Published by henryiii over 5 years ago

pybind11 - Version 2.6.0 RC 2

Next release candidate. Changes since RC 1:

Fixed:

Python 3.9.0 bug workaround implemented
Better support in CMake for packing and cross-compiling
Fix for failing py::len leaving error state set
Intel 18+ explicitly required, an issue with Intel compilers fixed
Custom ipo flags disabled with RelWithDebInfo (use CMAKE_INTERPROCEDURAL_OPTIMIZATION for more control)
Possible duplicate linker flags fixed in setup_helpers
Changes to py::module_ constructor are no longer provisional.

New features:

Static typing support for import pybind11

- C++
Published by henryiii over 5 years ago

pybind11 - Version 2.6.0 RC 1

This is the first release candidate for pybind11 2.6.0. Please see the new features in the changelog, such as revamped CMake and setuptools support, keyword and positional argument support, and a long list of features, fixes, and improvements. Full Python 3.9 support and enhanced C++20 support.

Known issues:

py::module_ direct construction provisionally deprecated
Removing registered types can cause a segfault - old issue exposed by recent test additions; fix incoming
On Python 3.9.0 and macOS, pybind11 may segfault when closing the interpreter after running the test suite

- C++
Published by henryiii over 5 years ago

pybind11 - Version 2.6.0 Beta 1

v2.6.0 beta release.

- C++
Published by henryiii over 5 years ago

Recent Releases of pybind11

pybind11 - Version 3.0.1

pybind11 - Version 3.0.0 (final)

pybind11 - Version 3.0.0 RC 4

What's Changed

New Contributors

pybind11 - Version 3.0.0 RC 3

New Contributors

pybind11 - Version 3.0.0 RC 2

pybind11 - Version 3.0.0 RC 1

What's Changed

New Contributors

pybind11 - Version 2.13.6

pybind11 - Version 2.11.2

pybind11 - Version 2.12.1

pybind11 - Version 2.13.5

pybind11 - Version 2.13.4

pybind11 - Version 2.13.3

pybind11 - Version 2.13.2

pybind11 - Version 2.13.1

pybind11 - Version 2.13.0

pybind11 - Version 2.12.0

pybind11 - Version 2.11.1

pybind11 - Version 2.11.0

pybind11 - Version 2.10.4

pybind11 - Version 2.10.3

pybind11 - Version 2.10.2

pybind11 - Version 2.10.1

pybind11 - Version 2.10.0

pybind11 - Version 2.9.2

pybind11 - Version 2.9.1

pybind11 - Version 2.9.0

pybind11 - Version 2.8.1

v2.8.1 (Oct 27, 2021)

pybind11 - Version 2.8.0

pybind11 - Version 2.7.1

pybind11 - Version 2.7.0

pybind11 - Version 2.6.2

pybind11 - Version 2.6.1

pybind11 - Version 2.6.0

pybind11 - Version 2.6.0 RC 3

pybind11 - Version 2.6.0 RC 2

Fixed:

New features:

pybind11 - Version 2.6.0 RC 1

pybind11 - Version 2.6.0 Beta 1