pyobjc-core

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

PyObjC-core provides the foundational bridge layer that lets Python code call Objective-C APIs and frameworks on macOS, enabling direct interoperability with native libraries.

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

pip install pyobjc-core

uv add pyobjc-core

poetry add pyobjc-core

Installing pyobjc-core

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.

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_core

macOS only; requires Python 3.10 or later. Installation will fail on non-macOS systems.

Verify 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

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

Keywords: Objective-C, Cocoa

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