サンプル

Pass base classes inside six.with_metaclass(Meta, *bases) rather than in the class definition base list where they are silently discarded, and avoid add_metaclass which bypasses __prepare__ and breaks zero-argument super in Python 3

sha256:b96f8ae4a5c194c87f07627a97c4a1d32774c312233f999a3e5677e592faa936

ケース

ゴール

Pass base classes inside six.with_metaclass(Meta, *bases) rather than in the class definition base list where they are silently discarded, and avoid add_metaclass which bypasses __prepare__ and breaks zero-argument super in Python 3 HOW

パッケージ

six 1.17.0

環境

python

作成日

2026-08-17T03:54:17Z

コントラクト

• six.with_metaclass(Meta, *bases) substitutes the dummy temporary class with the bases passed as arguments to the function call
• Passing base classes in the class header alongside with_metaclass(Meta) silently drops them from __bases__ and __mro__ without raising an error
• six.with_metaclass properly executes Meta.__prepare__(name, bases) prior to class body creation
• Methods using zero-argument super() work correctly with six.with_metaclass
• six.add_metaclass bypasses Meta.__prepare__ and breaks Python 3 zero-argument super() due to stale __class__ closure cell binding

ファイル

• NOTES.md
• csx.json
• requirements.txt
• test/contract.py

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9