UTF8版Python
open(filename) に警告を出さず、ゆっくりとUTF-8 by default everywhere な状況への移行を目指す。
実質的に Windows のみがlegacyエンコーディングを使っている状況なので、それをUTF-8に移行できればいい。
UTF-8 mode か UTF-8 manifest をオンの状態のインストーラーを配布して、ダウンロード統計でUTF-8への移行具合をモニタリングできないか？あるいは pip に locale.getpreferredencoding(False) を報告してもらう？
The difference with the PEP 597 (2nd) is now I propose to not change the subprocess.PIPE encoding in UTF-8 mode.
I need to reconsider about stdin/stdout encoding when they are redirected.
But Steve Dower said we need to emit a warning to everyone for are using the default encoding before the change.
He said
To change the default, we need to start warning when people use the default.
Petr Viktorin agreed with Steve.
He said
we should start issuing warnings now.
But later, he said
But yeah, that’s a lot of warnings.> I live in a very comfortable bubble of UTF-8 everywhere (with a few explicit exceptions), and I don’t think I can convince everyone else in this bubble that such warnings would be useful :(
Paul Moore againsted warning.
warning が必要勢と嫌だ勢の合意を取るのは無理！
stdin/out/err のエンコーディングを ConsoleCP から取るのはどうか。