Code review comment for lp:~gocept/landscape-client/python3

Thanks for addressing my comments so far.  Feel free to say that
something is coming up in a follow up branch or two: you can also
highlight bits that you know are imperfect and which will be fixed
later and we can ignore them in reviews.

Also, I might sometimes misread a bit of code or diff, so if you think
I am wrong, shout! :)

I'll wait for the next round of changes to go over them next.  Thanks
for bearing with me :-)