[New-bugs-announce] [issue1035] bytes buffer API needs to support PyBUF_LOCKDATA

[Gregory P. Smith]

New submission from Gregory P. Smith:

I've converted _bsddb.c to use the py3k buffer API for all data and keys
it takes as input.  All tests now fail with this error:

BufferError: Cannot make this object read-only.

This presumably results from this call:

  PyObject_GetBuffer(obj, view, PyBUF_LOCKDATA)

I need to lock the data so that the GIL can be released during database
operations (I/O).

Allowing bytes objects to have an immutability or readonly bit (internal
or otherwise) has been a recent topic on the python-3000 mailing list;
that would allow bytes' buffer API to satisfy this GetBuffer LOCKDATA
request...

----------
components: Interpreter Core
keywords: py3k
messages: 55333
nosy: gregory.p.smith
priority: normal
severity: normal
status: open
title: bytes buffer API needs to support PyBUF_LOCKDATA
type: rfe
versions: Python 3.0

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