mmap only supports string
castironpi at gmail.com
Thu Jan 8 09:40:46 CET 2009
On Jan 7, 8:14 pm, Neal Becker <ndbeck... at gmail.com> wrote:
> Problem is, AFAIK a string can only be created as a copy of some other data. Say I'd like to take some large object and read/write to/from mmap object. A good way to do this would be the buffer protocol. Unfortunately, mmap only supports string. A string could only be created after copying the original object AFAIK.
> I think mmap should work directly with buffer protocol, so it could directly read/write with objects supporting buffer protocol. Specifically, mmap slice should support buffer protocol.
Hi. It is a weakness. Strings are supposed to be read-only in
Python: so. You can use and get the PyObject_AsWriteBuffer C function
from 'ctypes' if you are interested.
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