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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573 open issues indexed

[BUG]: problem with python and c++ data type conversion Open

triage

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

pybind/pybind11#4682 · 1 comment · Opened May 23, 2023
[BUG]: expose lifted private/protected methods from non-exposed base class cause compile errors on MSVC Open

triage

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

pybind/pybind11#4675 · 1 comment · Opened May 18, 2023
[BUG]: Home .local libraries missing from sys.path with embed Open

triage

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

pybind/pybind11#4654 · 2 comments · Opened May 5, 2023
[BUG]: overload cast for function with template option failing on clang Open

triage

Difficulty 4/5 3-5 days Newbie friendliness 38/100

pybind/pybind11#4649 · Opened May 2, 2023
[BUG]: default value for Custom type casters not taken into count Open

triage

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

pybind/pybind11#4628 · 1 comment · Opened Apr 20, 2023
[BUG]: Cmake cannot find Python include directories for Python 3.11 on MacOS Open

triage

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

pybind/pybind11#4624 · 6 comments · 1 reaction · Opened Apr 14, 2023
[QUESTJION]: PYBIND11_OVERLOAD_PURE Causing Error Open

triage

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

pybind/pybind11#4614 · 1 reaction · Opened Apr 8, 2023
[BUG]: Silent failure if python object is destroyed but shared_ptr to CPP object is held Open

triage

pybind/pybind11#4603 · 4 comments · 1 assignee · Opened Apr 3, 2023
[BUG]: pyd file is created without suffix and along new dlls Open

build system regression

pybind/pybind11#4562 · 4 comments · 1 assignee · Opened Mar 11, 2023
[BUG]: AttributeError: module has no attribute Open

triage

Difficulty 3/5 1-2 days Newbie friendliness 25/100

pybind/pybind11#4554 · Opened Mar 7, 2023
[BUG]: `__new__` does not initialize STL containers and resulting in undefined behavior Open

docs enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 35/100

pybind/pybind11#4549 · 20 comments · Opened Mar 5, 2023
[BUG]: Having trouble creating immutable type with `tp_flags |= Py_TPFLAGS_IMMUTABLETYPE` Open

bug enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 32/100

pybind/pybind11#4548 · 6 comments · Opened Mar 5, 2023
[BUG]: Use of pybind11::args or pybind11::kw_only results in a Sphinx warning due to the use of * Open

enhancement help wanted signatures

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

pybind/pybind11#4537 · Opened Feb 27, 2023
[BUG]: Performance gap between two functions when running code in Python, almost no gap in C++ Open

triage

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

pybind/pybind11#4533 · 5 comments · Opened Feb 25, 2023
[BUG]: C function named "uncompress" will not be executed Open

triage

Difficulty 4/5 3-5 days Newbie friendliness 32/100

pybind/pybind11#4481 · 3 comments · Opened Feb 1, 2023
[BUG]: debug module::import("numpy.core.multiarray") crash Open

triage

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

pybind/pybind11#4476 · 1 comment · Opened Jan 28, 2023
[BUG]: Test test_init_factory_basic fails Open

bug help wanted regression

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

pybind/pybind11#4467 · Opened Jan 23, 2023
[BUG]: cannot compile example/run tests on docs on arm64 macOS Open

triage

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

pybind/pybind11#4460 · 2 comments · Opened Jan 17, 2023
[BUG]: noconvert() causes segmentation fault with icpc Open

triage

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

pybind/pybind11#4457 · Opened Jan 16, 2023
[BUG]: module being stripped if no build type selected (2.10.2 regression) Open

build system

pybind/pybind11#4454 · 8 comments · 1 assignee · Opened Jan 13, 2023
[BUG]: relocation R_X86_64_PC32 against symbol `_ZTV10ConfigFile' can not be used when making a shared object; recompile with -fPIC Open

triage

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

pybind/pybind11#4453 · 4 comments · Opened Jan 13, 2023
[BUG]: Returning a reference to an element within a vector will be invalidated. Open

triage

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

pybind/pybind11#4450 · Opened Jan 10, 2023
[BUG]: nox -s tests -- -DCMAKE_BUILD_TYPE=Debug -DDOWNLOAD_EIGEN=OFF failed about pybind11@master on centos8_aarch64 Open

triage

Difficulty 3/5 1-2 days Newbie friendliness 30/100

pybind/pybind11#4441 · Opened Jan 3, 2023
[BUG]: module hangs on init Open

triage

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

pybind/pybind11#4422 · Opened Dec 25, 2022
[BUG]: Pass by reference does copy Open

triage

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

pybind/pybind11#4417 · 2 comments · Opened Dec 23, 2022
[BUG]: Test test_run_in_process_multiple_threads_sequential fails Open

triage

Difficulty 4/5 3-5 days Newbie friendliness 32/100

pybind/pybind11#4416 · Opened Dec 23, 2022
Tracking test_gil_scoped.py `DEADLOCK`s Open

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

pybind/pybind11#4373 · 8 comments · Opened Dec 1, 2022
[BUG]: invalid shared ptr conversion leads to crash? Open

bug duplicate

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

pybind/pybind11#4365 · 8 comments · 1 reaction · Opened Nov 28, 2022
cannot exchange objects from python <-> C++. The object is from a third library Open

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

pybind/pybind11#4358 · 7 comments · Opened Nov 23, 2022
Package a independant c++ codebase that already generate a shared lib using cmake to a python package Open

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

pybind/pybind11#4334 · Opened Nov 14, 2022
Modify default value of `std::array` Open

triage

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

pybind/pybind11#4262 · 3 comments · Opened Oct 20, 2022
[BUG]: Cannot import pybind11-based python module from subinterpreter Open

docs

pybind/pybind11#4245 · 15 comments · 1 reaction · 1 assignee · Opened Oct 17, 2022
[BUG]: One test fails Open

triage

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

pybind/pybind11#4243 · 1 comment · Opened Oct 17, 2022
Bus error when importing numpy from a separate thread. Open

triage

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

pybind/pybind11#4240 · 3 comments · Opened Oct 14, 2022
pybind11 + pydantic Open

triage

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

pybind/pybind11#4239 · 2 comments · Opened Oct 13, 2022
[BUG]: `def_property` doesn't seems to keep parent alive when the return object is a `py::array` Open

bug triage

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

pybind/pybind11#4236 · 5 comments · 2 reactions · Opened Oct 12, 2022
[BUG]: Fatal Python error: PyThreadState_Get with c++ thread pool Open

triage

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

pybind/pybind11#4226 · 14 comments · Opened Oct 7, 2022
[QUESTION]: Speedup for converting numpy array to std::vector<T> Open

enhancement help wanted

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

pybind/pybind11#4131 · 2 comments · 2 reactions · Opened Aug 10, 2022
[QUESTION]: Example for wrapping std::variant Open

enhancement

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

pybind/pybind11#4108 · 7 comments · Opened Aug 3, 2022
[BUG]: In some situations, py::cast returns null instead of raising an exception Open

bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 32/100

pybind/pybind11#4099 · 8 comments · Opened Jul 30, 2022
[BUG]: Crash if 2 modules have conflicting module-local types Open

triage

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

pybind/pybind11#4097 · 1 comment · Opened Jul 29, 2022
[BUG]: pybind11::print raises an exception, when started from pythonw Open

triage

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

pybind/pybind11#4088 · 1 comment · Opened Jul 25, 2022
[BUG]: Binding an FFTW algorithm gives different results Open

triage

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

pybind/pybind11#4085 · 3 comments · Opened Jul 21, 2022
[BUG]: pybind11 2.10.0 - error_fetch_and_normalize changes conflicts with PyPy behavior for PyErr_NormalizeException Open

triage

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

pybind/pybind11#4075 · 19 comments · Opened Jul 17, 2022
[BUG]: throw is not propagate from python in some circumstances Open

triage

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

pybind/pybind11#4023 · 2 comments · Opened Jun 21, 2022
[BUG]: pybind11-config wrong include flags Open

build system

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

pybind/pybind11#3998 · 3 comments · Opened Jun 8, 2022
[BUG]: 'Unknown CMake command "python3_add_library" in pybind11NewTools.cmake Open

triage

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

pybind/pybind11#3996 · 6 comments · 7 reactions · Opened Jun 6, 2022
[BUG]: Build hangs on VS2019 Open

triage

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

pybind/pybind11#3963 · 1 comment · Opened May 19, 2022
[BUG]: bindings that work from Python fail with "Cannot find class 'py.pybind11_builtins.pybind11_type'" when used from Matlab Python interface Open

triage

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

pybind/pybind11#3945 · 7 comments · 1 reaction · Opened May 16, 2022
[BUG]: Memory issues when building in release mode Open

triage

Difficulty 5/5 Over a week Newbie friendliness 22/100

pybind/pybind11#3934 · Opened May 10, 2022

pybind/pybind11

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