[Python-ideas] PEP 506: some thoughts on the output length of token_bytes (and why I think it should be split in half)

[Antoine Pitrou]

On Tue, 13 Mar 2018 01:10:33 +1100
Chris Angelico <rosuav at gmail.com> wrote:
> On Tue, Mar 13, 2018 at 1:04 AM, Antoine Pitrou <solipsis at pitrou.net> wrote:
> > (I'm not sure what "smaller QR code" means. Given a QR code is
> > basically a computer analysis-friendly glyph that you show your phone
> > or other device to perform pattern recognition on, why does it matter
> > whether the QR code is "small" or not?)  
> 
> A QR code encoding more data requires finer resolution at the same
> size. That means the camera needs to be closer to it, all else being
> equal.

Is that important here?  I would expect the user to be (physically)
close to the QR code.  It's not like a QR code containing secret
credentials will be posted on a wall in a random street or subway
station (at least I hope so :-)).

Regards

Antoine.