{"id":27203,"library":"opack2","title":"opack2","description":"A Python library for parsing and serializing data in the opack format. Currently at version 0.0.1, with initial release. The library supports encoding/decoding of opack binary data.","status":"active","version":"0.0.1","language":"python","source_language":"en","source_url":"https://github.com/doronz88/opack2","tags":["opack","serialization","parsing","binary-format"],"install":[{"cmd":"pip install opack2","lang":"bash","label":"Install opack2"}],"dependencies":[],"imports":[{"note":"opack is a different package","wrong":"from opack import pack","symbol":"pack","correct":"from opack2 import pack"},{"note":"","wrong":"","symbol":"unpack","correct":"from opack2 import unpack"}],"quickstart":{"code":"from opack2 import pack, unpack\n\n# Pack data\ndata = {'key': 'value', 'number': 42}\npacked = pack(data)\n# Unpack data\nunpacked = unpack(packed)\nprint(unpacked)  # {'key': 'value', 'number': 42}\n","lang":"python","description":"Basic usage of opack2 to pack and unpack data."},"warnings":[{"fix":"Use 'from opack2 import pack, unpack' instead of 'from opack import ...'.","message":"Do not confuse opack2 with the older 'opack' package. They are separate libraries with different APIs.","severity":"gotcha","affected_versions":"0.0.1"},{"fix":"Use 'opack2==0.0.1' in requirements.txt.","message":"The library is in very early stage (v0.0.1). Breaking changes may occur without notice. Pin versions in production.","severity":"gotcha","affected_versions":"0.0.1"},{"fix":"","message":"No deprecations at this version.","severity":"deprecated","affected_versions":"0.0.1"},{"fix":"Upgrade Python to 3.9 or later.","message":"opack2 requires Python >=3.9. It will not work on older versions.","severity":"gotcha","affected_versions":"0.0.1"}],"env_vars":null,"last_verified":"2026-04-27T00:00:00.000Z","next_check":"2026-07-26T00:00:00.000Z","problems":[{"fix":"Run 'pip install opack2'","cause":"Library not installed.","error":"ModuleNotFoundError: No module named 'opack2'"},{"fix":"Use 'from opack2 import pack'","cause":"Attempting to import from 'opack' instead of 'opack2'.","error":"ImportError: cannot import name 'pack' from 'opack'"},{"fix":"Upgrade Python to 3.9+","cause":"Running on Python < 3.9.","error":"SyntaxError: invalid syntax"}],"ecosystem":"pypi","meta_description":null,"install_score":null,"install_tag":null,"quickstart_score":null,"quickstart_tag":null}