appnope
Disable App Nap on macOS >= 10.9
Decision gist · record as of 2026-08-14
Yes, if you develop or run Python applications on macOS that perform long-running or performance-sensitive tasks. The package is actively maintained, has no dependencies, and solves a real macOS-specific problem. Not relevant for non-macOS environments.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- macOS >= 10.9 required; package is macOS-only and will not function on other operating systems.
- Low friction install with no runtime dependencies.
- Actively maintained as of 2026-08-03.
License · maintenance · safety
BSD (permissive) — BSD license is permissive; you can use this package freely in commercial and open-source projects with minimal restrictions.
last release 2024-02-06 (920 days) · last repo commit 2026-08-03 · 58 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 9,808,896 downloads/mo, #1,500 on PyPI
Alternatives
Verify before relying
pip install appnope
import appnope
appnope.nope() # disable App Nap
# or use as context manager
with appnope.nope_scope():
do_important_stuff()- Whether App Nap behavior or system integration has changed in recent macOS versions beyond 10.9
What it is and what it does
appnope is a lightweight utility for macOS developers who need to prevent the operating system from throttling their Python applications. On macOS >= 10.9, the App Nap feature automatically reduces CPU and I/O for backgrounded applications to save power, which can cause performance problems for long-running tasks. appnope wraps the native NSProcessInfo API using ctypes to temporarily disable App Nap around critical code sections.
The package provides three ways to control App Nap: a simple toggle function to disable it globally, a function to re-enable it, and a context manager for scoped disabling. It has no external dependencies and installs as a pure Python wheel, making it trivial to add to any macOS-based project that needs predictable performance during intensive operations.
Use it for
- Prevent App Nap during long-running data processing or scientific computations on macOS.
- Ensure consistent performance for background services or daemons running on macOS systems.
- Disable App Nap around critical test suites or benchmarks to avoid timing interference.
- Protect specific code blocks from throttling while keeping App Nap enabled elsewhere in the application.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you develop or run Python applications on macOS that perform long-running or performance-sensitive tasks.
The package is actively maintained, has no dependencies, and solves a real macOS-specific problem. Not relevant for non-macOS environments.
Install
appnope on PyPI
Before you install
Low friction install with no runtime dependencies. Actively maintained as of 2026-08-03.
macOS >= 10.9 required; package is macOS-only and will not function on other operating systems.
License in practice
BSD license is permissive; you can use this package freely in commercial and open-source projects with minimal restrictions.
Quickstart
pip install appnope
import appnope
appnope.nope() # disable App Nap
# or use as context manager
with appnope.nope_scope():
do_important_stuff()Verify before relying
- Whether App Nap behavior or system integration has changed in recent macOS versions beyond 10.9
Package facts
| License | BSD permissive |
| Python support | Supports the current Python release >=3.6 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 920 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 9,808,896 / month, #1,500 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: BSD LicenseOperating System :: MacOS :: MacOS XProgramming Language :: Python :: 3 |
Evidence: appnope-0.1.4-py2.py3-none-any.whl
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