{"library":"repoze.lru","title":"repoze.lru: Tiny LRU Cache","description":"repoze.lru is a light-weight LRU (Least Recently Used) cache implementation for Python, including both an `LRUCache` object and an `lru_cache` decorator. It efficiently evicts less frequently used keys and values to manage memory. The current version 0.7, released in 2017, maintains a stable and slow release cadence, focusing on core functionality.","language":"python","status":"active","last_verified":"Thu May 21","install":{"commands":["pip install repoze.lru"],"cli":null},"imports":["from repoze.lru import LRUCache","from repoze.lru import lru_cache"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"from repoze.lru import LRUCache, lru_cache\n\n# Using LRUCache object\ncache = LRUCache(100)  # Max length of 100 items\n\ncache.put('key1', 'value1')\nprint(f\"Cache get 'key1': {cache.get('key1')}\")\nprint(f\"Cache get 'nonexisting' with default: {cache.get('nonexisting', 'default_value')}\")\n\n# Using lru_cache decorator\n@lru_cache(50)\ndef expensive_function(arg1, arg2):\n    print(f\"Executing expensive_function({arg1}, {arg2})\")\n    return arg1 + arg2\n\nprint(f\"Result 1: {expensive_function(1, 2)}\") # Executes\nprint(f\"Result 2: {expensive_function(1, 2)}\") # Cached\nprint(f\"Result 3: {expensive_function(3, 4)}\") # Executes","lang":"python","description":"Demonstrates how to create and use an `LRUCache` object, and how to apply the `lru_cache` decorator to a function.","tag":null,"tag_description":null,"last_tested":"2026-04-25","results":[{"runtime":"python:3.10-alpine","exit_code":0},{"runtime":"python:3.10-slim","exit_code":0},{"runtime":"python:3.11-alpine","exit_code":0},{"runtime":"python:3.11-slim","exit_code":0},{"runtime":"python:3.12-alpine","exit_code":0},{"runtime":"python:3.12-slim","exit_code":0},{"runtime":"python:3.13-alpine","exit_code":0},{"runtime":"python:3.13-slim","exit_code":0},{"runtime":"python:3.9-alpine","exit_code":0},{"runtime":"python:3.9-slim","exit_code":0}]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-21","installed_version":"0.7","pypi_latest":"0.8","is_stale":true,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":1.5,"avg_import_s":0.01,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine 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