pyobjc-core
Python<->ObjC Interoperability Module
Decision gist · record as of 2026-08-14
Yes, if you are developing on macOS and need to call Objective-C frameworks or build native applications in Python. The active maintenance, permissive license, and lack of known vulnerabilities make it a solid choice. Not applicable on non-macOS platforms; installation will fail outside macOS.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- macOS only; requires Python 3.10 or later.
- Installation will fail on non-macOS systems.
- Medium install friction due to platform-specific wheels (macOS only, multiple Python versions and architectures).
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use this in commercial or proprietary projects with minimal restrictions, provided you include the license notice.
last release 2026-08-11 (3 days) · last repo commit 2026-08-14 · 803 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 3,326,223 downloads/mo, #2,658 on PyPI
Alternatives
Verify before relying
pip install pyobjc-core
import pyobjc_core- Whether pre-built wheels cover all intended Python versions and architectures on your target macOS versions.
- Performance characteristics when bridging frequent calls between Python and Objective-C code paths.
- Specific Objective-C classes and methods accessible through the bridge after installation.
What it is and what it does
PyObjC-core is the low-level bridge that connects Python to Objective-C on macOS. It handles the translation layer between Python's object model and Objective-C's runtime, allowing you to instantiate Objective-C classes, call methods, and access properties directly from Python code. This is the foundation package; most users will also install framework-specific bindings to access actual macOS APIs.
The package is actively maintained, supports modern Python versions from 3.10 through 3.15 including free-threading variants, and carries no known vulnerabilities. It's a production-stable tool for developers building native macOS applications in Python or integrating Python with existing Objective-C codebases. The medium install friction reflects that it's platform-specific and requires compiled wheels, but those are readily available.
Use it for
- Write full Cocoa desktop applications in pure Python with access to native macOS UI frameworks.
- Call Objective-C APIs and third-party frameworks from Python scripts running on macOS.
- Embed Python logic into Objective-C applications by bridging between the two languages.
- Prototype or automate macOS system tasks using Python with direct access to native APIs.
- Inspect and interact with Objective-C classes from the Python interactive interpreter.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are developing on macOS and need to call Objective-C frameworks or build native applications in Python.
The active maintenance, permissive license, and lack of known vulnerabilities make it a solid choice. Not applicable on non-macOS platforms; installation will fail outside macOS.
Install
pyobjc-core on PyPI
Before you install
Medium install friction due to platform-specific wheels (macOS only, multiple Python versions and architectures). Active maintenance with a recent release (3 days old) and steady repository activity suggest reliable upkeep.
macOS only; requires Python 3.10 or later. Installation will fail on non-macOS systems.
License in practice
MIT license is permissive; you can use this in commercial or proprietary projects with minimal restrictions, provided you include the license notice.
Quickstart
pip install pyobjc-core
import pyobjc_coreVerify before relying
- Whether pre-built wheels cover all intended Python versions and architectures on your target macOS versions.
- Performance characteristics when bridging frequent calls between Python and Objective-C code paths.
- Specific Objective-C classes and methods accessible through the bridge after installation.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 3 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 3,326,223 / month, #2,658 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 X :: CocoaIntended Audience :: DevelopersNatural Language :: EnglishOperating System :: MacOS :: MacOS XProgramming Language :: Objective CProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.15Programming Language :: Python :: Free Threading :: 3 - StableProgramming Language :: Python :: Implementation :: CPythonTopic :: Software Development :: Libraries :: Python ModulesTopic :: Software Development :: User Interfaces |
Evidence: pyobjc_core-12.2.2-cp310-cp310-macosx_10_9_universal2.whl; pyobjc_core-12.2.2-cp311-cp311-macosx_10_9_universal2.whl; pyobjc_core-12.2.2-cp312-cp312-macosx_10_13_universal2.whl; pyobjc_core-12.2.2-cp313-cp313-macosx_10_13_universal2.whl; pyobjc_core-12.2.2-cp313-cp313t-macosx_10_13_universal2.whl; pyobjc_core-12.2.2-cp314-cp314-macosx_10_15_universal2.whl; pyobjc_core-12.2.2-cp314-cp314t-macosx_10_15_universal2.whl; pyobjc_core-12.2.2-cp315-cp315-macosx_10_15_universal2.whl; pyobjc_core-12.2.2-cp315-cp315t-macosx_10_15_universal2.whl
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See also pyobjc · pyobjc-framework-AppleScriptObjC · pyobjc-framework-SharedWithYouCore · pyobjc-framework-ClassKit · pyobjc-framework-Network · pyobjc-framework-Photos · pyobjc-framework-CoreAudioKit · Cython · rpy2-rinterface · rpy2-robjects