El dom, 10 de oct. de 2021 a la(s) 11:50, Serhiy Storchaka
([email protected]) escribió:
>
> 10.10.21 17:19, Facundo Batista пише:
> > I have a long list of nums (several millions), ended up doing the following:
> >
> > struct.pack_into(f'{len(nums)}Q', buf, 0, *nums)
>
> Why not use array('Q', nums)?
You mean `array` from the `array` module? The only way I see using it
is like the following:
>>> shm = shared_memory.SharedMemory(create=True, size=total_size)
>>> a = array.array('Q', nums)
>>> shm.buf[l_offset:r_offset] = a.tobytes()
But I don't like it because of the `tobytes` call, which will produce
a huge bytearray only to insert it in the shared memory buffer.
That's why I liked `pack_into`, because it will write directly into
the memory view.
Or I'm missing something?
Thanks!
--
. Facundo
Blog: http://www.taniquetil.com.ar/plog/
PyAr: http://www.python.org.ar/
Twitter: @facundobatista
_______________________________________________
Python-Dev mailing list -- [email protected]
To unsubscribe send an email to [email protected]
https://mail.python.org/mailman3/lists/python-dev.python.org/
Message archived at
https://mail.python.org/archives/list/[email protected]/message/52NGDRMD3BR4ZTT3KGF6FNNGQIIPXBWY/
Code of Conduct: http://python.org/psf/codeofconduct/
