On Dec 2, 2019, at 12:32 PM, Chris Clark <chris.cl...@actian.com> wrote:
>
> Test case:
>
> import array
> array.array('L', [0])
> # x.itemsize == 8 rather than 4
>
> This works fine (returns 4) under Windows Python 3.7.3 64-bit build.
>
> Under Ubuntu; Python 2.7.15rc1, 3.6.5, 3.70b3 64-bit this returns 8.
> Documentation at https://docs.python.org/3/library/array.html explicitly
> states 'L' is for size 4.
> It impacts all uses types of array (e.g. reading from byte strings).
>
> The struct module is a little different:
>
> import struct
> x = struct.pack('L', 0)
> # len(x) ===8 rather than 4
>
> This can be worked around by using '=L' - which is not well documented - so
> this maybe a doc issue.
>
> Wanted to post here for comments before opening a bug at
> https://bugs.python.org/
>
> Is anyone seeing this under Debian/Ubuntu?
>
>
> Chris
>
Documentation that I see says *Minimum* size is 4, nothing says that it will be
4
I wouldn’t be surprized if ‘I’ gave you a size of 4 on that platform (and maybe
even on many 32 bit platforms too)
--
https://mail.python.org/mailman/listinfo/python-list
