[issue21377] PyBytes_Concat could try to concat in-place

[Antoine Pitrou]

New submission from Antoine Pitrou:

Currently, PyBytes_Concat always creates a new bytes object for the result. However, when Py_REFCNT(*pv) == 1, it could instead call _PyBytes_Resize() and then concat the second argument in place.

(like e.g. _PyUnicode_Append does)

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components: Interpreter Core
messages: 217406
nosy: haypo, nikratio, pitrou
priority: normal
severity: normal
status: open
title: PyBytes_Concat could try to concat in-place
type: performance
versions: Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21377>
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