shiboken6
Python/C++ bindings helper module
Decision gist · record as of 2026-08-14
Yes, if you are developing with Qt for Python or maintaining Shiboken-generated bindings. The module is actively maintained, has no security vulnerabilities, and fills a specific debugging and introspection niche. The copyleft license is standard for Qt tooling. Install only if you actually need binding introspection; it is not a general-purpose library.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later (supports up to 3.14); platform-specific wheels for macOS, Linux, and Windows
- Medium install friction due to platform-specific wheels; actively maintained with recent release 93 days ago.
License · maintenance · safety
copyleft license (copyleft) — Copyleft license (LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only) requires derivative works to be licensed under compatible terms; proprietary use requires explicit license choice or commercial agreement.
last release 2026-05-13 (93 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,743,357 downloads/mo, #2,506 on PyPI
Alternatives
Verify before relying
import shiboken6
# Check if a Python wrapper is valid after C++ object destruction
if shiboken6.isValid(wrapped_object):
# Safe to call methods on the wrapper
pass- Whether shiboken6 can be used standalone or requires additional Qt for Python packages
- Specific debugging capabilities and introspection API surface beyond object validity checks
- Performance characteristics when checking object validity in high-frequency code paths
What it is and what it does
Shiboken6 is a utility module that exposes the internals of Python/C++ bindings generated by the Shiboken binding generator. It lets you inspect and validate binding objects at runtime—checking whether a Python wrapper is still valid after its underlying C++ object has been destroyed, or retrieving metadata about the binding itself. This is primarily useful for developers building Qt for Python applications or integrating C++ libraries into Python, where understanding the state of language-boundary objects can be critical for debugging memory issues or wrapper lifecycle problems.
The module is part of the Qt for Python project and provides a programmatic interface to binding introspection that would otherwise be opaque. It has no runtime dependencies and supports Python 3.10 through 3.14 across macOS, Linux, and Windows platforms.
Use it for
- Debug memory lifecycle issues by checking if C++ objects underlying Python wrappers have been destroyed
- Validate binding object state before calling methods that depend on valid C++ pointers
- Inspect binding metadata during development of custom Shiboken-generated bindings
- Diagnose crashes caused by stale wrapper references in long-running applications
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are developing with Qt for Python or maintaining Shiboken-generated bindings.
The module is actively maintained, has no security vulnerabilities, and fills a specific debugging and introspection niche. The copyleft license is standard for Qt tooling. Install only if you actually need binding introspection; it is not a general-purpose library.
Install
shiboken6 on PyPI
Before you install
Medium install friction due to platform-specific wheels; actively maintained with recent release 93 days ago.
Requires Python 3.10 or later (supports up to 3.14); platform-specific wheels for macOS, Linux, and Windows
License in practice
Copyleft license (LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only) requires derivative works to be licensed under compatible terms; proprietary use requires explicit license choice or commercial agreement.
Quickstart
import shiboken6
# Check if a Python wrapper is valid after C++ object destruction
if shiboken6.isValid(wrapped_object):
# Safe to call methods on the wrapper
passVerify before relying
- Whether shiboken6 can be used standalone or requires additional Qt for Python packages
- Specific debugging capabilities and introspection API surface beyond object validity checks
- Performance characteristics when checking object validity in high-frequency code paths
Package facts
| License | copyleft license copyleft |
| Python support | Supports the current Python release <3.15,>=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 93 days since the last release |
| First released | |
| Downloads | 3,743,357 / month, #2,506 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableEnvironment :: ConsoleEnvironment :: MacOS XEnvironment :: Win32 (MS Windows)Environment :: X11 Applications :: QtIntended Audience :: DevelopersOperating System :: MacOS :: MacOS XOperating System :: MicrosoftOperating System :: Microsoft :: WindowsOperating System :: POSIXOperating System :: POSIX :: LinuxProgramming Language :: C++Programming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Topic :: DatabaseTopic :: Software DevelopmentTopic :: Software Development :: Code GeneratorsTopic :: Software Development :: Libraries :: Application FrameworksTopic :: Software Development :: User InterfacesTopic :: Software Development :: Widget Sets |
Evidence: shiboken6-6.11.1-cp310-abi3-macosx_13_0_universal2.whl; shiboken6-6.11.1-cp310-abi3-manylinux_2_34_x86_64.whl; shiboken6-6.11.1-cp310-abi3-manylinux_2_39_aarch64.whl; shiboken6-6.11.1-cp310-abi3-win_amd64.whl; shiboken6-6.11.1-cp310-abi3-win_arm64.whl
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See also shiboken2 · PySide6 · PySide6-Essentials · PySide6-Addons · QtPy · PySide2 · QDarkStyle · cxxheaderparser · PyQt6 · qt-material