[issue30404] Make stdout and stderr truly unbuffered when using -u option

[Serhiy Storchaka]

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


New changeset 77732be801c18013cfbc86e27fcc50194ca22c8e by Serhiy Storchaka in branch 'master':
bpo-30404: The -u option now makes the stdout and stderr streams totally unbuffered. (#1667)
https://github.com/python/cpython/commit/77732be801c18013cfbc86e27fcc50194ca22c8e


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<https://bugs.python.org/issue30404>
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