pyobjc-framework-FSEvents
Wrappers for the framework FSEvents on macOS
Decision gist · record as of 2026-08-14
Yes, if you are building a macOS application that needs filesystem monitoring and you are already using PyObjC or are comfortable reading Apple's framework documentation. The package is actively maintained, has no known vulnerabilities, and provides direct access to a robust native API. No if you need cross-platform file watching or prefer higher-level abstractions—this is a low-level binding to macOS-only functionality.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- macOS only; requires Python 3.10 or later; depends on pyobjc-core and pyobjc-framework-Cocoa
- Medium install friction due to platform-specific wheels (macOS only) and two PyObjC dependencies.
- Actively maintained with a recent release (3 days old) and steady repository activity.
License · maintenance · safety
MIT (permissive) — MIT license permits commercial and private use with minimal restrictions; you may use, modify, and distribute this package freely provided you retain 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) · 725,026 downloads/mo, #5,221 on PyPI
Alternatives
Verify before relying
pip install pyobjc-framework-fsevents
from FSEvents import FSEventStreamCreate
# Use FSEvents API via PyObjC bindings to monitor filesystem- Specific code examples or tutorials for common monitoring patterns beyond Apple's documentation
- Performance characteristics when monitoring large directory trees or high-frequency changes
- Whether the package works reliably with Python's free-threading mode (3.13+)
What it is and what it does
This package wraps macOS's native FSEvents framework, exposing it to Python through PyObjC. FSEvents is the system's native mechanism for observing filesystem changes at scale, and unlike polling-based approaches, it remains efficient even when your application is suspended or backgrounded. The wrapper translates between Python and Objective-C, letting you call FSEvents functions directly from Python code.
You use it when you need to build macOS tools that react to file or directory changes—file watchers, backup utilities, development tools, or system monitors. The package itself provides no high-level API; instead, it gives you direct access to Apple's FSEvents framework, so you'll need to consult both Apple's documentation and PyObjC's translation guide to write working code. It's a thin binding layer, not an abstraction.
Use it for
- Build a file watcher that triggers actions when files in a monitored directory change without polling
- Implement a backup or sync tool that responds to filesystem events on macOS
- Create a development tool that reloads or rebuilds when source files are modified
- Monitor system directories for security or auditing purposes on macOS
- Integrate filesystem monitoring into a larger PyObjC-based macOS application
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building a macOS application that needs filesystem monitoring and you are already using PyObjC or are comfortable reading Apple's framework documentation.
The package is actively maintained, has no known vulnerabilities, and provides direct access to a robust native API. No if you need cross-platform file watching or prefer higher-level abstractions—this is a low-level binding to macOS-only functionality.
Install
pyobjc-framework-fsevents on PyPI
Before you install
Medium install friction due to platform-specific wheels (macOS only) and two PyObjC dependencies. Actively maintained with a recent release (3 days old) and steady repository activity.
macOS only; requires Python 3.10 or later; depends on pyobjc-core and pyobjc-framework-Cocoa
License in practice
MIT license permits commercial and private use with minimal restrictions; you may use, modify, and distribute this package freely provided you retain the license notice.
Quickstart
pip install pyobjc-framework-fsevents
from FSEvents import FSEventStreamCreate
# Use FSEvents API via PyObjC bindings to monitor filesystemVerify before relying
- Specific code examples or tutorials for common monitoring patterns beyond Apple's documentation
- Performance characteristics when monitoring large directory trees or high-frequency changes
- Whether the package works reliably with Python's free-threading mode (3.13+)
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 2 packagespyobjc-corepyobjc-framework-Cocoa |
| Maintenance | Actively maintained 3 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 725,026 / month, #5,221 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_framework_fsevents-12.2.2-cp310-cp310-macosx_10_9_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp311-cp311-macosx_10_9_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp312-cp312-macosx_10_13_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp313-cp313-macosx_10_13_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp313-cp313t-macosx_10_13_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp314-cp314-macosx_10_15_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp314-cp314t-macosx_10_15_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp315-cp315-macosx_10_15_universal2.whl; pyobjc_framework_fsevents-12.2.2-cp315-cp315t-macosx_10_15_universal2.whl
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See also pyobjc-framework-FSKit · watchdog · pyobjc-framework-NetFS · pyeventsystem · pywatchman · pyobjc-framework-NotificationCenter · pyobjc-framework-FileProvider · pyobjc-framework-EventKit · pyobjc-framework-UserNotifications · pyobjc-framework-SystemExtensions