{"library":"queuelib","title":"Queuelib","description":"Queuelib is a Python library providing a collection of persistent (disk-based) and non-persistent (memory-based) queue implementations. It's often used in projects requiring efficient data storage and retrieval, particularly in contexts like web crawling (e.g., Scrapy). The current version is 1.9.0, and it maintains an active, though irregular, release cadence, primarily focusing on Python version compatibility and minor enhancements.","language":"python","status":"active","last_verified":"Thu May 21","install":{"commands":["pip install queuelib"],"cli":null},"imports":["from queuelib.disk import FifoDiskQueue","from queuelib import PriorityQueue"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import tempfile\nimport shutil\nfrom queuelib.disk import FifoDiskQueue\n\n# Create a temporary directory for the queue files\nqdir = tempfile.mkdtemp()\ntry:\n    q = FifoDiskQueue(qdir)\n    print(f\"Queue created at: {qdir}\")\n\n    q.push(b'item1')\n    q.push(b'item2')\n    print(f\"Pushed: item1, item2. Size: {len(q)}\")\n\n    item = q.pop()\n    print(f\"Popped: {item}. Size: {len(q)}\")\n\n    q.close() # IMPORTANT: Always close disk queues to ensure data integrity\n    print(\"Queue closed.\")\n\n    # Reopen the queue from the same directory to demonstrate persistence\n    q2 = FifoDiskQueue(qdir)\n    item2 = q2.pop()\n    print(f\"Reopened queue. Popped: {item2}. Size: {len(q2)}\")\n    q2.close()\n\nexcept Exception as e:\n    print(f\"An error occurred: {e}\")\nfinally:\n    shutil.rmtree(qdir) # Clean up the temporary directory\n    print(f\"Cleaned up directory: {qdir}\")","lang":"python","description":"This quickstart demonstrates creating and using a `FifoDiskQueue` for persistent storage. It shows pushing and popping items, closing the queue for integrity, and reopening it to retrieve previously stored data. Remember to always call `.close()` on disk-based queues and handle the storage directory appropriately.","tag":null,"tag_description":null,"last_tested":"2026-04-25","results":[{"runtime":"python:3.10-alpine","exit_code":1},{"runtime":"python:3.10-slim","exit_code":1},{"runtime":"python:3.11-alpine","exit_code":1},{"runtime":"python:3.11-slim","exit_code":1},{"runtime":"python:3.12-alpine","exit_code":1},{"runtime":"python:3.12-slim","exit_code":1},{"runtime":"python:3.13-alpine","exit_code":1},{"runtime":"python:3.13-slim","exit_code":1},{"runtime":"python:3.9-alpine","exit_code":1},{"runtime":"python:3.9-slim","exit_code":1}]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-21","installed_version":"1.8.0","pypi_latest":"1.9.0","is_stale":true,"summary":{"python_range":"3.10–3.9","success_rate":50,"avg_install_s":1.5,"avg_import_s":null,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine 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