{"id":21074,"library":"cot","title":"Common OVF Tool","description":"COT (Common OVF Tool) is a Python library and command-line tool for editing and managing OVF/OVA files, commonly used with Cisco virtual platforms. Current version is 2.2.1, with a slow release cadence (approximately annual).","status":"active","version":"2.2.1","language":"python","source_language":"en","source_url":"https://github.com/glennmatthews/cot","tags":["ovf","ova","vmware","cisco","virtualization"],"install":[{"cmd":"pip install cot","lang":"bash","label":"Install from PyPI"}],"dependencies":[],"imports":[{"note":"Direct import of 'cot' does not expose the main class; use from cot import COT.","wrong":"import cot","symbol":"COT","correct":"from cot import COT"}],"quickstart":{"code":"from cot import COT\novf = COT('path/to/input.ova')\novf.edit_hardware(cpus=2, memory=4096)\novf.save('path/to/output.ova')","lang":"python","description":"Basic example to load an OVA, edit hardware, and save."},"warnings":[{"fix":"Use Python 3.4 or later.","message":"Python version support: COT requires Python >=2.7, <4, but drops Python 3.3 as of v2.2.0. Ensure you are using Python 3.4+.","severity":"gotcha","affected_versions":">=2.2.0"},{"fix":"Install QEMU 2.5.1+ or use vmdktool as fallback.","message":"QEMU version compatibility: For creating streamOptimized VMDK files, QEMU >= 2.5.1 is required. Versions 2.1.0-2.5.0 produce incompatible VMDKs.","severity":"gotcha","affected_versions":"all"}],"env_vars":null,"last_verified":"2026-04-27T00:00:00.000Z","next_check":"2026-07-26T00:00:00.000Z","problems":[{"fix":"Run 'pip install cot' and verify you are using Python 3.4+.","cause":"COT is not installed or Python environment is incorrect.","error":"ImportError: No module named cot"},{"fix":"Use '--cpus 2' (no quotes) or '--cpus=2' correctly.","cause":"Incorrect argument syntax on command line; --cpus expects an integer but got a string due to shell quoting.","error":"cot: error: argument --cpus: invalid int value: '2'"}],"ecosystem":"pypi","meta_description":null,"install_score":null,"install_tag":null,"quickstart_score":null,"quickstart_tag":null}