pybind/pybind11

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Seamless operability between C++11 and Python

Stars: 18k
Forks: 2.3k
Open beginner issues: 1
Indexed issues: 574
Avg merge: 5d 17h
Merged PRs (30d): 10

Dominant language: C++
License: No license data
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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574 open issues indexed

[BUG]: race condition in init with gil_scoped_release causes pybind11_object_dealloc(): Tried to deallocate unregistered instance! Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5473 · 2 comments · 1 reaction · Opened Dec 19, 2024
[BUG]: Unknown CMake command "python_add_library" in pybind11NewTools.cmake Open

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Difficulty 2/5 1-3 hours Newbie friendliness 35/100

pybind/pybind11#5472 · 4 comments · Opened Dec 19, 2024
[BUG]: CMake FindPython issues on CMake>3.23, and Python linking issue in debug mode Open

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Difficulty 4/5 3-5 days Newbie friendliness 45/100

pybind/pybind11#5467 · 3 comments · Opened Dec 14, 2024
[BUG]: Unexpected behavior assigning Python callback to C++ class Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5466 · Opened Dec 14, 2024
[BUG]: MacMini M4 clang does not properly support pybind11 Open

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Difficulty 3/5 1-2 days Newbie friendliness 35/100

pybind/pybind11#5455 · Opened Nov 28, 2024
python's multiple illegal destructions of classes in C++[BUG]: Open

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Difficulty 4/5 3-5 days Newbie friendliness 20/100

pybind/pybind11#5453 · 1 comment · Opened Nov 26, 2024
[BUG]: Sparse Eigen type caster assumes that the index and value arrays are mutable Open

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Difficulty 3/5 1-2 days Newbie friendliness 45/100

pybind/pybind11#5431 · Opened Nov 4, 2024
[BUG]: Description of is_fmt_numeric does not match actual behavior Open

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Difficulty 4/5 3-5 days Newbie friendliness 42/100

pybind/pybind11#5428 · Opened Nov 3, 2024
[BUG]: `type_info` data races in free threaded Python Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5421 · 1 reaction · Opened Oct 24, 2024
[BUG]: Custom SharedPtr<T> usually should not be required to have a copy constructible T. Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5417 · Opened Oct 23, 2024
[BUG] calling multiple pybind11 scoped env which calls cppyy Open

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Difficulty 4/5 3-5 days Newbie friendliness 28/100

pybind/pybind11#5414 · Opened Oct 19, 2024
[BUG]: 2 successive py::scoped_interpreter -> double free or corruption (out) Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5412 · 1 comment · Opened Oct 15, 2024
[BUG]: Pure virtual method overriding using mixin class gives: Tried to call pure virtual function … Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5405 · 1 comment · Opened Oct 10, 2024
[BUG]: Class attributes are not accessible when caught Python exception using py::register_exception Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5391 · Opened Sep 30, 2024
[BUG]: `json.dumps` failed on object with new `_pybind11_conduit_v1` method Open

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Difficulty 4/5 3-5 days Newbie friendliness 30/100

pybind/pybind11#5377 · Opened Sep 17, 2024
[BUG]: Can't include 3rd shared libraries Open

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Difficulty 5/5 Over a week Newbie friendliness 25/100

pybind/pybind11#5367 · 1 comment · Opened Sep 13, 2024
[BUG]: cv::Mat to numpy Open

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Difficulty 4/5 3-5 days Newbie friendliness 25/100

pybind/pybind11#5347 · 1 comment · Opened Sep 1, 2024
[BUG]: Eigen::SparseMatrix -> unexpected overload-resolution / template-instantiation Open

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Difficulty 4/5 3-5 days Newbie friendliness 25/100

pybind/pybind11#5283 · Opened Aug 2, 2024
[BUG]: NumPy ImportError with Embedded Interpreter in Adobe After Effects Plugin Using pybind11 Open

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Difficulty 4/5 3-5 days Newbie friendliness 25/100

pybind/pybind11#5282 · 2 comments · Opened Aug 1, 2024
[BUG]: implicitly_convertible with templated constructor Open

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Difficulty 4/5 3-5 days Newbie friendliness 45/100

pybind/pybind11#5271 · 4 comments · Opened Jul 26, 2024
[BUG]: static numpy array_t leads to segfault on exit on Python 3.12 Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5270 · Opened Jul 26, 2024
[BUG]: CVE-2022-42969 being flagged in project using pybind Open

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Difficulty 1/5 Under an hour Newbie friendliness 35/100

pybind/pybind11#5248 · 1 comment · Opened Jul 17, 2024
[BUG]: Strict aliasing error on MinGW Open

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Difficulty 2/5 1-3 hours Newbie friendliness 45/100

pybind/pybind11#5244 · Opened Jul 15, 2024
[BUG]: 6 tests fail Open

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Difficulty 5/5 Over a week Newbie friendliness 20/100

pybind/pybind11#5240 · Opened Jul 12, 2024
[BUG]: iterators are needlessly slow / need an exception-free way of finishing. Open

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Difficulty 5/5 Over a week Newbie friendliness 25/100

pybind/pybind11#5233 · 1 comment · Opened Jul 9, 2024
[BUG]: pybind11 failed to build due to ImportError: DLL load failed while importing test_cmake_build on windows with MSVC ASAN Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5229 · 1 reaction · Opened Jul 8, 2024
[BUG]: bounds checking problem Open

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Difficulty 4/5 3-5 days Newbie friendliness 25/100

pybind/pybind11#5224 · 10 comments · 3 reactions · Opened Jul 4, 2024
Linking is really slow with Ninja CMake generator, but not Unix Makefiles Open

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Difficulty 2/5 1-3 hours Newbie friendliness 62/100

pybind/pybind11#5223 · Opened Jul 3, 2024
[Bug]: Pybind failed to build due to error LNK2019 on windows with MSVC Target ARM64 Open

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Difficulty 4/5 3-5 days Newbie friendliness 42/100

pybind/pybind11#5222 · 2 comments · 1 reaction · Opened Jul 2, 2024
[BUG]: 在vs2019下编写回调函数接口引用pybind11/function.h时编译会显示“语法错误：意外的令牌标识符，预期的令牌为类型说明符” Open

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Difficulty 2/5 1-3 hours Newbie friendliness 35/100

pybind/pybind11#5182 · Opened Jun 20, 2024
[BUG]: Function with Param of type `const Eigen::VectorXd&` causes "windows fatal exception: access violation" on Windows Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5181 · 1 comment · Opened Jun 20, 2024
[BUG]: Runtime error loading `numpy` Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5173 · 5 comments · 1 reaction · Opened Jun 19, 2024
[BUG]: acquire gil in new thread fails (access violation) Open

triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5152 · Opened May 31, 2024
[BUG]: Pybind11 conflicts with TBB because of the `PYBIND11_DEBUG_MARKER` hack Open

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Difficulty 4/5 3-5 days Newbie friendliness 45/100

pybind/pybind11#5136 · Opened May 24, 2024
[BUG]: py::args can not be combined with kw_only(), triggers static assert Open

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Difficulty 4/5 3-5 days Newbie friendliness 42/100

pybind/pybind11#5135 · 2 comments · Opened May 23, 2024
[BUG]: `tp_name` field not initialized correctly for a nested class Open

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Difficulty 3/5 1-2 days Newbie friendliness 42/100

pybind/pybind11#5132 · Opened May 22, 2024
[BUG]: 'static object' caused memory leak shown in asan & valgrind results. Open

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Difficulty 4/5 3-5 days Newbie friendliness 15/100

pybind/pybind11#5125 · 1 comment · 1 reaction · Opened May 8, 2024
[BUG]: OpenMP loops hang with Python virtual function overrides Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5117 · Opened Apr 30, 2024
[BUG]: py::object.get_pointer() should use reinterpret_cast Open

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Difficulty 2/5 1-3 hours Newbie friendliness 48/100

pybind/pybind11#5116 · Opened Apr 30, 2024
[BUG]: pybind11 does not show compiler output on Windows Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5115 · Opened Apr 30, 2024
[BUG]: XCode compilation error in pybind11 v12.2.0 (pybind11.h, line 1145) Open

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Difficulty 3/5 1-2 days Newbie friendliness 45/100

pybind/pybind11#5114 · Opened Apr 30, 2024
[BUG]: `tests/requirements.txt` not working on ARM-based MacOS Open

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Difficulty 2/5 1-3 hours Newbie friendliness 52/100

pybind/pybind11#5113 · Opened Apr 26, 2024
[BUG]: Failed C++ Assert is Ignored in Python Open

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Difficulty 3/5 1-2 days Newbie friendliness 35/100

pybind/pybind11#5106 · Opened Apr 19, 2024
[BUG]: Segfault when getting repr of enum which hasn't been bound Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5101 · Opened Apr 12, 2024
[BUG]: CMAKE pybind11 tries to find Python even if it has already been found with find_package() (and finds the wrong version) (Windows 10) Open

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Difficulty 4/5 3-5 days Newbie friendliness 30/100

pybind/pybind11#5100 · 3 comments · Opened Apr 11, 2024
[FR]: Integrated ctest and other project improvements Open

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Difficulty 5/5 Over a week Newbie friendliness 25/100

pybind/pybind11#5095 · 1 reaction · Opened Apr 8, 2024
[META]: Clarify license metadata Open

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Difficulty 2/5 1-3 hours Newbie friendliness 45/100

pybind/pybind11#5093 · Opened Apr 8, 2024
[BUG]: Changelog date seems wrong (2025?) Open

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Difficulty 1/5 Under an hour Newbie friendliness 52/100

pybind/pybind11#5090 · Opened Apr 4, 2024
[BUG]: -flto=thin from CMAKE_INTERPROCEDURAL_OPTIMIZATION_CONFIG is not respected Open

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Difficulty 2/5 1-3 hours Newbie friendliness 48/100

pybind/pybind11#5088 · Opened Apr 3, 2024
[BUG]: `ninja check` regression on PyPy3.10, due to cmake failing in `test_installed_function` Open

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Difficulty 4/5 3-5 days Newbie friendliness 35/100

pybind/pybind11#5087 · 4 comments · Opened Apr 3, 2024

pybind/pybind11

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