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♻️ Replace pybind11 with nanobind #248

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Merged
denialhaag merged 8 commits into from
Jan 15, 2026
Merged

♻️ Replace pybind11 with nanobind #248

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81a9e33
Update mqt-core
denialhaag Jan 14, 2026
419bf97
Replace pybind11 with nanobind
denialhaag Jan 14, 2026
64d08c7
Enable Stable ABI wheels
denialhaag Jan 14, 2026
6f6c02b
Auto-generate stub file
denialhaag Jan 14, 2026
8c8a166
Ignore linter errors
denialhaag Jan 14, 2026
427ad10
Clean up docstrings
denialhaag Jan 14, 2026
59ed3cc
Simplify ExternalDependencies.cmake
denialhaag Jan 14, 2026
e63f7b8
Improve stubs session
denialhaag Jan 14, 2026
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4 changes: 3 additions & 1 deletion .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,7 @@ jobs:
clang-version: 20
cmake-args: -DBUILD_MQT_DEBUGGER_BINDINGS=ON
files-changed-only: true
install-pkgs: "pybind11==3.0.1"
install-pkgs: "nanobind==2.10.2"
setup-python: true
cpp-linter-extra-args: "-std=c++20"

Expand Down Expand Up @@ -125,6 +125,8 @@ jobs:
needs: change-detection
if: fromJSON(needs.change-detection.outputs.run-python-tests)
uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-python-linter.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
with:
check-stubs: true

build-sdist:
name: 🚀 CD
Expand Down
6 changes: 2 additions & 4 deletions CMakeLists.txt
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Expand Up @@ -42,10 +42,8 @@ if(BUILD_MQT_DEBUGGER_BINDINGS)
CACHE BOOL "Prevent multiple searches for Python and instead cache the results.")

# top-level call to find Python
find_package(
Python 3.10 REQUIRED
COMPONENTS Interpreter Development.Module
OPTIONAL_COMPONENTS Development.SABIModule)
find_package(Python 3.10 REQUIRED COMPONENTS Interpreter Development.Module
${SKBUILD_SABI_COMPONENT})
endif()

include(cmake/ExternalDependencies.cmake)
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5 changes: 2 additions & 3 deletions bindings/CMakeLists.txt
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Expand Up @@ -5,7 +5,7 @@
#
# Licensed under the MIT License

add_mqt_python_binding(
add_mqt_python_binding_nanobind(
DEBUGGER
${MQT_DEBUGGER_TARGET_NAME}-bindings
bindings.cpp
Expand All @@ -16,5 +16,4 @@ add_mqt_python_binding(
INSTALL_DIR
.
LINK_LIBS
MQT::Debugger
pybind11_json)
MQT::Debugger)
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