[New-bugs-announce] [issue31774] tarfile.open ignores custom bufsize value when creating a new archive

[Charalampos Stratakis]

New submission from Charalampos Stratakis <cstratak at redhat.com>:

Trying to create an archive with the tarfile module, by specifying a different blocking factor, doesn't seem to work as only the default value is being used. The issue is reproducible on all the active python branches.

Attaching a script to reproduce it.

Original bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1492157

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components: Library (Lib)
files: tartest.py
messages: 304241
nosy: cstratak, lars.gustaebel
priority: normal
severity: normal
status: open
title: tarfile.open ignores custom bufsize value when creating a new archive
versions: Python 2.7, Python 3.6, Python 3.7
Added file: https://bugs.python.org/file47218/tartest.py

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<https://bugs.python.org/issue31774>
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