[issue39365] Support (SEEK_END/SEEK_CUR) relative seeking in StringIO

[Serhiy Storchaka]

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

This is a duplicate of issue25190.

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components: +Library (Lib)
nosy: +serhiy.storchaka
resolution:  -> duplicate
stage:  -> resolved
status: open -> closed
superseder:  -> Define StringIO seek offset as code point offset
type: behavior -> enhancement
versions: +Python 3.9

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<https://bugs.python.org/issue39365>
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