async-lru

Install

async-lru on PyPI

pip install async-lru

uv add async-lru

poetry add async-lru

Package facts

Evidence: async_lru-2.3.0-py3-none-any.whl

Keywords: asyncio, lru, lru_cache

About async-lru

from the package's own PyPI description — quoted content, verbatim

Read as markdown · JSON record · Source repository · Homepage

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

Provides an LRU cache decorator for async functions that deduplicates concurrent calls and supports TTL expiration with jitter, mirroring Python's functools.lru_cache for asyncio.

Minimal friction: pure-Python wheel with only typing_extensions as a runtime dependency. Active maintenance with recent releases (147 days since last) and 951 GitHub stars signal a stable, well-maintained library.

MIT License (permissive) places no restrictions on use, modification, or distribution in proprietary or open-source projects.

pip install async-lru

from async_lru import alru_cache

@alru_cache(maxsize=32)
async def my_func(arg):
    return arg * 2

await my_func(5)  # Returns 10
print(my_func.cache_info())  # View hit/miss stats

Verdict: Production-ready async caching library with low install friction, active maintenance, and no known vulnerabilities. The single-event-loop constraint is documented and manageable for typical asyncio applications. Recommended for projects needing efficient memoization of async functions with optional TTL support.

Needs verification

• Performance characteristics relative to alternatives or uncached baselines in real-world async workloads
• Whether the thundering herd mitigation (jitter) is effective in high-concurrency scenarios

Similar packages