[issue16125] open accepts arbitrary mode strings as long as they contain U

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

Python 2.7 is no longer supported.

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nosy: +serhiy.storchaka
resolution:  -> out of date
stage: needs patch -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue16125>
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