Python 2 to 3 Conversion

[Chris Angelico]

On Mon, Feb 19, 2018 at 11:32 PM, Rhodri James <rhodri at kynesim.co.uk> wrote:
> On 18/02/18 16:18, Wildman via Python-list wrote:
>>>
>>> But that's only going to show one (uplink) address. If I needed to get
>>> ALL addresses for ALL network adapters, I'd either look for a library,
>>> and if one wasn't easily found, I'd shell out to the "ip" command and
>>> parse its output.:)
>>>
>> I considered using the "ip" command but I prefer not to
>> depend on external programs if I can get around it.  I
>> know that might be considered silly but that's just me.
>
>
> It's not silly at all, but for Linux networking it might be the best idea.
> I believe in theory you are supposed to use libnl (in some suitable
> wrapping), but my experience with that is that it is badly documented and
> horrendously unreliable.

Agreed. Obviously the first choice is to look in the standard library
for the functionality you want, but it's not there (at least, I
couldn't find it). Then your next choices, if I'm not mistaken, are:

* Random third-party packages you might find on PyPI
* Opaque IOCTLs
* Wrapping a poorly-documented C library
* Invoking a subprocess and parsing its output

When those are the choices, the subprocess option doesn't look too bad.

ChrisA