[Python-Dev] Using PEP384 Stable ABI for the lzma extension module

["Martin v. Löwis"]

>> Not sure what you are using it for. If you need to extend the buffer
>> in case it is too small, there is absolutely no way this could work
>> without copies in the general case because of how computers use
>> address space. Even _PyBytes_Resize will copy the data.
>
> That's not a given. Depending on the memory allocator, a copy can be
> avoided. That's why the "str += str" hack is much more efficient under
> Linux than Windows, AFAIK.

Even Linux will have to copy a block on realloc in certain cases, no?

Regards,
Martin