New submission from Daniele Varrazzo:
Definitely related to this change in Python 3.3:
Accessing a memoryview element with format ‘B’ (unsigned bytes) now
returns an integer (in accordance with the struct module syntax).
For returning a bytes object the view must be cast to ‘c’ first.
The object returned by PyBuffer_FillInfo is 'B' format: this means that python
code finds itself dealing in Py 3.3 with a different object respect to what
returned in Py 3.1 and 3.2. Is this change in the behavior wanted? Wouldn't
have been better having FillInfo return a 'c' buffer instead?
I'm adding support to Py 3.3 to psycopg2 and the B buffers make the test suite
fail. I want psycopg to return consistent objects across 3.x. Is the change in
this commit correct?
https://github.com/dvarrazzo/psycopg/commit/469b6f8aff4cafe203d851b19bedfab0128e795a
Is this a good way to return a 'c' buffer?
----------
messages: 172710
nosy: piro
priority: normal
severity: normal
status: open
title: PyBuffer_FillInfo returns 'B' buffer, whose behavior has changed w.r.t.
3.1/3.2
type: behavior
versions: Python 3.3
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue16204>
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