---
id: pyobjc-framework-calendarstore
version: "12.2.2"
license: MIT
license_treatment: permissive
maintenance: active
---

# pyobjc-framework-CalendarStore — Wrappers for the framework CalendarStore on macOS

License: permissive · Maintenance: active · Downloads: 621.1K/mo

## What it is and what it does

This package wraps Apple's CalendarStore framework for use in Python on macOS, giving developers direct access to the system's iCal data store. It sits on top of pyobjc-core and pyobjc-framework-Cocoa, translating Objective-C calls into Python. You can fetch calendar records and tasks, modify them, and subscribe to change notifications when iCal data updates.

It is a thin binding layer rather than a high-level abstraction—the package explicitly directs users to Apple's framework documentation and PyObjC's general translation guides. This makes it suitable for developers who need deep integration with macOS calendar systems and are comfortable reading Objective-C API docs and adapting them to Python.

Use it for:

- Build macOS desktop applications that read or modify user calendars and tasks stored in iCal.
- Create automation scripts that monitor calendar changes and trigger actions when events are added or modified.
- Integrate Python tools with the native macOS calendar system for scheduling or calendar-aware workflows.
- Develop system utilities that need programmatic access to iCal records without going through third-party calendar APIs.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Provides Python bindings to macOS's CalendarStore framework, enabling access to iCal data including calendars and tasks with change notifications.

Yes, if you are building on macOS and need direct access to the system CalendarStore. The package is actively maintained, has no known vulnerabilities, and carries a permissive license. Install friction is low. However, it is macOS-only and requires familiarity with Objective-C API translation; it is not a high-level calendar library.

## Install

pip install pyobjc-framework-calendarstore
uv add pyobjc-framework-calendarstore
poetry add pyobjc-framework-calendarstore

## Installing pyobjc-framework-CalendarStore

Before you install: Low install friction with pure-Python wheel distribution. Actively maintained with a release 3 days old and recent repository activity. Requires pyobjc-core and pyobjc-framework-Cocoa as dependencies.

License in practice: MIT license permits unrestricted use, modification, and distribution with minimal restrictions—suitable for commercial and private projects.

Quickstart:

pip install pyobjc-framework-calendarstore

from CalendarStore import CalendarStore
cal_store = CalendarStore.defaultCalendarStore()

macOS 10.5 or later required; Python 3.10+ required; only runs on macOS systems with CalendarStore framework available.

Verify before relying:

- Whether the package supports real-time change notifications as described, or if that requires additional setup.
- Whether fetch and modify operations work with all iCal record types or have limitations.
- Performance characteristics when working with large calendar datasets.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 621.1K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

macos calendar access python, ical data python bindings, calendarstore framework wrapper, macos task management python, pyobjc calendar integration, ical events python, macos cocoa calendar, macos-only, objc-bindings, calendar-integration

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