How to write list of integers to file with struct.pack_into?

Iwant to write a list of 64-bit integers to a binary file. Everyexample I have seen in my research convertsit to .txt, but I want it in binary. I wrote this code,based on some earlier work I have done: buf= bytes((len(qs_array)) * 8) foroffset in range(len(qs_array)): item_to_write= byt

Python 3.12.0 (final) now available.

Finally, it’s final! The final release of Python 3.12.0 (final) is here! https://www.python.org/downloads/release/python-3120/ This is the stable release of Python 3.12.0 Python 3.12.0 is the newest major release of the Python programming language, and it contains many new features and optimizati

Re: How to write list of integers to file with struct.pack_into?

On 2 Oct 2023, at 16:02, Jen Kris via Python-list wrote: Iwant to write a list of 64-bit integers to a binary file.  Everyexample I have seen in my research convertsit to .txt, but I want it in binary.  I wrote this code,based on some earlier work I have done: buf= b

Python 3.12.0 venv not working with psycopg2

Hi, I have an issue since about 5 months now. Python 3.12.0 venv not working with psycopg2 on Windows. I created 2 issues on GitHub but they were closed. I checked today with the new Python release but it's still not working. https://github.com/psycopg/psycopg2/issues/1578 https://github.com/pyth

Re: How to write list of integers to file with struct.pack_into?

On 2023-10-01 23:04, Jen Kris via Python-list wrote: > > Iwant to write a list of 64-bit integers to a binary file. Everyexample I have seen in my research convertsit to .txt, but I want it in binary. I wrote this code,based on some earlier work I have done: > > buf= bytes((len(qs_array)) * 8)

Re: How to write list of integers to file with struct.pack_into?

Thanks very much, MRAB.  I just tried that and it works.  What frustrated me is that every research example I found writes integers as strings.  That works -- sort of -- but it requires re-casting each string to integer when reading the file.  If I'm doing binary work I don't want the extra over

Re: How to write list of integers to file with struct.pack_into?

Jen Kris wrote at 2023-10-2 00:04 +0200: >Iwant to write a list of 64-bit integers to a binary file. Everyexample I >have seen in my research convertsit to .txt, but I want it in binary. I wrote >this code,based on some earlier work I have done: > >buf= bytes((len(qs_array)) * 8) > >for offset

Re: How to write list of integers to file with struct.pack_into?

Dieter, thanks for your comment that: * In your code, `offset` is `0`, `1`, `2`, ... but it should be `0 *8`, `1 * 8`, `2 * 8`, ... But you concluded with essentially the same solution proposed by MRAB, so that would obviate the need to write item by item because it writes the whole buffer at o

Re: Python 3.12.0 venv not working with psycopg2

On 2023-10-02 19:44:12 +0300, אורי via Python-list wrote: > I have an issue since about 5 months now. Python 3.12.0 venv not working > with psycopg2 on Windows. I created 2 issues on GitHub but they were > closed. I checked today with the new Python release but it's still not > working. > > https: